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Southwest Mobile Storage - Best Mobile Storage & Office Containers In Centennial, CO

Southwest Mobile Storage is a family-owned shipping container business founded in 1995. Our strength for more than 25 years comes from the specialized knowledge and passion of our people, along with serving over 24,000 commercial, construction and residential customers. Our facility and expertise in maintaining, manufacturing, and delivering corrugated steel containers is unrivaled in the industry.

While the rental side of our business is regional with branches throughout the Southwest, our container sales and modification operations are nationwide and becoming global. Centennial, CO offers a wide selection of portable offices and mobile storage containers you can rent, buy or modify.

Our experts in container rental, sales and customization are committed to providing you the highest quality and best experience from service to delivery - our reputation depends on it.

Whether your need is for storage, office space, moving, multi-purpose or custom use, we've got your back. Here's how:

Storage Containers Centennial, CO



We bring your storage container to you for convenient, easy access at your home, business or jobsite. Plus, you'll get more choice in storage space and better security, for a fraction of the cost of a pod or add on building, saving money and energy.


Not enough room to keep a storage container at your business, home or construction site? No problem - we can store it for you. Plus, you get 70% more space and better security, for a fraction of the cost of public storage units.


Need a permanent storage solution for your business, residence or construction? We sell new and used shipping containers in many sizes with a variety of add-ons. Or customize a container to your specific storage needs with our certified fabrication experts.


Take your time packing with our moving containers. We'll deliver to your business or home and pick it up whenever you're ready to move. So, you don't have to stress about moving or making multiple trips in one day, like if you rented a moving truck.


Our moving container solutions ensure the long-distance move of your home or business is highly efficient and affordable throughout the southwest. In fact, we usually cost 20%-40% less than full-service movers.


We understand move-in and move-out dates might be different. We can store your moving container at our highly secure facilities until you're ready to move to your new home or business location, and you can conveniently access it at any time.


Whether you need a workspace, conference room, or other office requirement, our ground-mounted mobile offices meet any and all of your business needs. Plus, it's faster and easier than building additions.


If you need your shipping container to serve multiple uses, such as office-storage combos, breakrooms and even utilities, we've got you covered. We'll modify a custom container to fit your business needs and bring your business to the next level


We'll create a custom container to fit your unique needs anywhere in the US. With our container modification expertise, we make any idea a reality. From pop-up stores to multi-story structures, our unrivaled facilities and fabrication experts do it all.

You'll get your own dedicated storage and container expert to serve as your one point of contact for easy, convenient service you can trust.
With our wide selection of intermodal containers for sale and rent, you'll find exactly what you need, from size, to type and condition.
We maintain our rental fleet to the highest standard - our integrity depends on it.
Our certified, experienced Conex container modification experts have more than 500 years combined experience modifying ISO containers.
All of our containers come with high security dual-locking system for no additional charge, so you can rest assured your stored items stay safe and that you don't have to pay extra for it.
At our unrivaled 90,000 sq ft indoor fabrication facility, ensuring your custom shipping container is made exactly to your specifications.
With our level of service, quality and expertise, you won't find a better value anywhere else.
Our portable offices include lighting and electrical outlets, internet hookups, HVAC and were crafted by our in-house steel container fabrication experts for top-quality construction.

Premium Quality - High Security

With Southwest Mobile Storage, you get much more than a POD or typical Conex box. You also get high security, unparalleled service and unmatched container modification expertise and facilities. No other company offers that much.

Shipping containers and storage containers come in a range of sizes. The most common external lengths are 20ft and 40ft with a width of 8ft. ISO Containers are typically 8ft 6in tall, but high cube containers are 9ft 6in tall. We also have steel containers in a variety of sizes from 10ft long to 45ft long to rent or buy, and we can modify shipping containers into any size you want.

 Rent Storage Containers Centennial, CO

SMS Mobile Storage Containers have these high quality features:

1/8" thick steel plate bottom side rails
High strength steel supporting cross members
1 1/8" thick hardwood floor with galvanized self-tapping screws
16-gauge corrugated steel walls
16-gauge roof
270-degree swing cargo door(s)
High security dual-locking system*
Spot-grinded, primed & repainted with a beige high-grade water reducible alkyd direct-to-metal enamel*
* Comes standard on all rental units

SMS portable workspace containers have these structural features:

High security window bars, lever & deadbolt set with lock box
Studs & R-19 Insulation covered with wood paneling
1 1/8" marine board floor is covered with a durable single part gray epoxy coating
Dual pane low-E horizontal sliding windows with screens and miniblinds
18 Gauge steel polystyrene core 3-hour fire rated personnel door
All of our workspaces are manufactured in-house and arrive new or restored to factory specifications
Exterior load center operating on 100 Amp single phase 230 Volt power
Light switch, receptacles and 4' light fixtures; all wiring is Romex 12/2
CAT-6 voice and data lines with electrical junction box
HVAC units ranging from 1 ton to 2 ton on rentals; ability to customize up to 10 tons of cooling

Having flexible storage containers options is important, but security is crucial to protect your peace of mind and your possessions.

At Southwest Mobile Storage, we don't believe in leaving things to chance. We want you to rest easy knowing your inventory, documents, tools, equipment and other items are safe 24/7. That is why we equip SMS high-security slide bolt locking systems and lockboxes on our entire fleet of rental freight containers.


High-security slide-bolt locking system and extra-long lock box, giving you twice the security and peace of mind.
No holes to ensure your rental shipping container is wind and water-tight.
No rust for your safety.
14-gauge corrugated steel for strength and reinforcement.

Contact us to speak with a helpful, friendly representative to better understand our full range of capabilities. We are happy to answer any questions you have, go over pricing and set up a time and place to deliver your Conex box. Our quotes are 100% free and you are under no obligation to pay for your consultation.


When you own a business or manage one, it's crucial to have efficient, affordable ways to store inventory and supplies, whether it's to grow your business or adapt to changes in the market, like the many caused by the pandemic.

Renting storage containers to keep at your business eliminates the cost and hassles of sending your staff to offsite storage facilities. Steel containers with roll up doors make storing and retrieving items faster and easier. Auto repair shops and other businesses that need easy access throughout the workday to secure storage for tools, parts, equipment or supplies find renting shipping containers to be the best solution for their business storage needs. Southwest Mobile Storage has your back.

 Storage Containers For Rent Centennial, CO

Renting portable offices gives your business more workspace, breakrooms, pop up stores, security booths and more, without the cost and red tape associated with constructing building additions. Plus, a steel storage container fits neatly into one parking space and provides much stronger security than Pods and way more convenience than self-storage units.

If you have a specific need, we can modify shipping containers to build whatever you need to grow your business. Whether it's a portable workspace to run your business, like a pop-up container bar, or a durable facility for scientific research, like a container laboratory, or even a container gym, our unrivaled fabrication facility and modification experts got you covered. Our full-time, in-house staff of certified welders, engineers, electricians, carpenters and painters have over 500 years combined experience modifying thousands of container projects for just about any business use you can imagine.


Offsite storage alternatives cause a mess of hassles and headaches. Expanding office space and storage capacity at your location saves time, money and hassle of making multiple trips offsite.
We offer more choice in security, size and features in steel Conex boxes or ISO shipping containers than a public storage unit or Pod for less cost and far greater service.
We offer flexible, month-to-month rental agreements and prorate by the day after your first 28-day billing cycle.
With us, you get a dedicated account manager you can rely on, so you can focus on running your business than waste time with a different person every time you call that doesn't know or care as much.
While other companies may have some staff for modifying containers, most outsource the work, so you don't know who is actually doing the modifications or how much they're marking up the price.
 Mobile Storage Containers Centennial, CO
When you modify a shipping container for your business, you won't have to worry about expensive, lengthy and complicated construction.
We have modified thousands of containers nationwide and internationally for more than 25 years for NASA, US Navy, GCP Applied Technologies, Helix and Sundt to name a few. And rent containers to Amazon, Walmart and many of other nationally recognized brands.
Our extensive staff makes it possible to custom build multiple projects simultaneously and our 90,000 sq ft indoor fabrication facility prevents contaminants from interfering with fabrication, which delivers better quality and precision.


With an extensive in-house staff and 90,000 sq ft container modification facility, we're able to deliver consistently high quality and work on multiple projects simultaneously for a fast turnaround.

Other companies don't have the facility, staff or resources to modify shipping containers and will outsource the work to various shops who may not have the special experience or tools needed to modify the right way.

You can rest assured knowing your custom container is safe in our hands. Our certified weld and quality control inspectors ensure everything is structurally sound and built to your specifications through every step of the process.

Renting a moving container from us makes your move much less stressful because you won't have to rush to pack your whole house into a moving truck in one day. Instead, you can take your time packing over the course of a month.

Our ISO shipping containers are weatherproof and come with vault-like security, so you don't have to worry about theft or damage to your belongings.

You won't get that level of security from U-Haul or other moving truck companies.

Renting a storage container at your home keeps your belongings close and gives you convenient 24/7 access, so you're always able to retrieve the contents of your container when you need to.

We know move in and move out dates don't always line up. We can store your packed rental container at our secure facility until your new home is ready.

With our mobile storage containers for rent in Centennial, CO, you can save up to 40% when compared to full-service long-distance movers, while gaining more flexibility in your schedule.


We know your needs may change suddenly. With our extensive inventory and variety of sizes of portable offices and shipping containers to rent, buy or modify in Centennial, CO, we provide fast service and the best value possible so it's easy for you to get whatever you need when you need it.

Renting storage containers and portable offices from us gives you more flexibility when it comes to your schedule and options. If you don't have enough space at your current location or simply would prefer offsite storage, you can keep your rental storage and office containers at your location or ours - whichever is most convenient for you. You also get more options to choose from when it comes to size and features, like portable offices with divided rooms for private meetings or office/storage combos for storage and office space in one container. All while costing a fraction of the price of a pod or self-storage facility.

You can also buy new or used freight containers from us and choose from a variety of add-ons, including lights, electricity, doors and windows. Or fully customize a shipping container to save time, money and energy by skipping the expensive, lengthy process of constructing building additions. We can modify a Conex box into whatever you can imagine for any use you need, from construction tool cribs to office buildings, monitoring stations, mobile communication towers and much more. The possibilities are endless.


You'll never face hidden fees or surprises with us. We give you transparent billing up front at the best prices.

With us, you get a reliable, dedicated point of contact, who keeps you updated every step of the way. You can rest assured knowing you'll always get what you need, when you need it.

No other company has the breadth and depth of staff and experience that we do when it comes to modifying shipping containers. Our certified welders, engineers, electricians, plumbers, carpenters and painters have more than 500 years of combined experience in fabricating custom steel containers.

We prorate your rent by the day after the first 28-day billing cycle, so you don't have to pay for a full month when you only have your mobile containers and offices for a few days.

While other companies may be able to do small container modifications, most don't have an in-house fabrication staff or 90,000 sq ft fabrication facility like we do. As a result, they outsource the work on your custom container, so you don't know who's actually building it.

Rest assured knowing your modified shipping container will be built to the highest quality standards. Our certified weld and quality control inspectors check every step of the fabrication process to ensure everything is structurally sound and built to your specifications.


Whether you're in need of a storage container for your commercial business, a portable office for your construction site, or a moving container for your home, our process is simple and straightforward.

Choose Your Container

Choose the mobile storage solution that works best for your needs. In this step, you will let us know the number of containers you need, their sizes and what types of doors to equip.

Choose Your Options

Let us know if you would like to add any of our rental options, like a folding table or shelving.

Choose Your Security

Choose from padlocks, puck locks and other enhanced security options. All of our storage containers come standard with dual-locking, vault-like security.

Choose Your Delivery Timeframe

You can expect standard delivery within 3-5 days of your order. If you need expedited delivery, we will do everything in our power to accommodate your needs.

Pick-Up Planning

Do you need to keep your shipping container at our location? Prefer to have our team deliver your packed container to a location of your choice? Let us know, and we'll be by your side to work out the logistics.




Let our team know where we should deliver your mobile storage container for rent in Centennial, CO. Be sure to let us know if there are any special conditions that might prevent our drivers from entering your chosen destination. Before you schedule your delivery, let us know which direction you would like the doors of your container to face.



Our drivers can deliver your storage container Monday-Friday, between the hours of 6AM and 2PM local time. Our two-hour delivery window is the most precise in the industry. If you desire another delivery time outside of our standard delivery options, we will do our best to accommodate your needs. As a courtesy, our driver will call you at least 30 minutes before they arrive at your drop-off destination.



Before we deliver your Conex box, prepare your delivery area by ensuring that there are no low overhangs, arches, wires, trees or any other obstacles that could interfere with your delivery. It's a good idea to mark the space where you would like your steel container placed.



When our driver arrives, they will back our truck into the space where you would like your shipping container placed. Once we arrive, we will ensure that your container is delivered safely and securely. If placed on asphalt or pavement, we will use wood dunnage pads to make sure your ground surface is protected and the container is level.


Check out our FAQ page or reach out to our helpful customer service team today @


Latest News in Centennial, CO

Centennial battery tech company raises $67M

A Centennial-based battery tech company raised $67 million last month.The July raise brings Iontra’s total funding to $80 million, according to CEO and President Jeff Granato. Energy investors Volta Energy Technologies and Riverstone led this round.Granato said the raise will further fund Iontra’s development of a chip that increases charging speed and battery life.“We’re starting to prepare for a global footprint, so building all functions with that in mind, being able to scale and serve customer...

A Centennial-based battery tech company raised $67 million last month.

The July raise brings Iontra’s total funding to $80 million, according to CEO and President Jeff Granato. Energy investors Volta Energy Technologies and Riverstone led this round.

Granato said the raise will further fund Iontra’s development of a chip that increases charging speed and battery life.

“We’re starting to prepare for a global footprint, so building all functions with that in mind, being able to scale and serve customers well,” Granato said.

Jeff Granato

The company, which Daniel Konopka and Jason Seedig founded in 2013, has doubled in size every year for three years, according to Granato. It’s headquartered at 7025 S. Fulton St. in Centennial, and has two other Denver facilities at 5925 E. Evans Ave. in Virginia Village and 1830 S. Bannock St. in Overland.

Granato said Iontra hopes to eventually consolidate its Denver presence to one large facility. The company also has a facility in Dallas and a chip design center in Bangalore, India, which opened in May.

With $80 million secured, Granato said Iontra is raising more funds through grants and loans before starting a Series C raise next year.

“You’re never out of fundraising mode,” he said.

The company makes charging chips that it says extend battery life while charging faster and safer. Granato said standard batteries have a charging chip that’s plated with lithium, which deteriorates the anode, the part of the battery responsible for electrical flow.

“We’re really in the middle of the largest energy transition in history – electricity and batteries are right in the middle of it all,” Granato said. “We have technology that can revolutionize the performance and life of batteries and do it safely.”

An Iontra chip can be used on any kind of battery, such as smartphones, medical devices and electric scooters. Right now, the company is working with customers to test its product before fully introducing it to the market in 2025. It anticipates technology for electric vehicles will hit the market in 2027.

“Our current set of customers are large product owners who are selling in the tens or hundreds of millions of units a year, so the production ramp up for the chip will go very rapidly,” Granato said.

Before joining Iontra in 2016, Granato co-founded the energy company Proterra, which designed the first electric transit bus and helped change the energy industry.

“We’re embarking on a similar journey in Iontra where our commitment is to help the whole industry change to our technology to get better performance for all commercial batteries,” Granato said.

The Erasure Brings Laser Tattoo Removal to Centennial, CO Featuring the Asclepion PicoStar®, Backed By Astanza

CENTENNIAL, Colo., Aug. 11, 2023 (GLOBE NEWSWIRE) -- Centennial, Colorado welcomes a new business that will cater to the growing demand for tattoo removal services. The Erasure, a laser tattoo removal business, is celebrating its grand opening, promising to offer state-of-the-art e...

CENTENNIAL, Colo., Aug. 11, 2023 (GLOBE NEWSWIRE) -- Centennial, Colorado welcomes a new business that will cater to the growing demand for tattoo removal services. The Erasure, a laser tattoo removal business, is celebrating its grand opening, promising to offer state-of-the-art equipment that can remove even the most stubborn tattoos with minimal discomfort and no scarring.

The Erasure business concept has been in development for months, and its team of experienced professionals has been working tirelessly to bring the latest in laser technology to Centennial, Denver, and surrounding areas. With the Asclepion PicoStar®, backed by Astanza, clients receive the safest and most effective treatments. This medical-grade laser produces 1064 and 532 nm wavelengths, to ensure the best results in the fewest number of treatments possible. With picosecond laser technology, The Erasure can also perform pigmented lesion removal, vascular lesion removal, and other advanced body services, on any skin type.

“The Erasure is not just another tattoo removal business. We are passionate about helping people achieve the results they want. Our staff is trained to handle picosecond technology and committed to ensuring each client receives the best possible care,” says Keith Edmonds, owner of The Erasure. “We take the time to listen to our clients' needs and concerns, and work with them every step of the way to achieve the best possible outcome.”

With their commitment to quality and expertise in tattoo removal, The Erasure is sure to become a trusted resource for those seeking tattoo removal, pigmented lesion removal, vascular lesion removal, and other advanced body services. The opening of this business is a much-needed addition to the Centennial community and is expected to be a great success.

If you're considering laser tattoo removal, The Erasure invites you to visit their location and learn more about their services. They are committed to making the process as easy and comfortable as possible for their clients. With their state-of-the-art technology and experienced staff, you can trust The Erasure to help you get the results you’ve been looking for.

Call The Erasure today at (720) 507-6342 or visit their website at . Follow them on and to stay up to date on the latest news and promotions. The Erasure is located at 7009 S. Potomac St. Suite 124, Centennial, Colorado 80112.

Astanza is the leader in lasers for tattoo removal, hair removal, and additional aesthetic procedures. In addition to delivering cutting-edge medical laser devices such as the Duality, Trinity, MeDioStar, PicoStar, and DermaBlate systems, Astanza offers an unbeatable experience through , which consists of the Business Builder System, 3-Business Day Service Guarantee, and Lifetime Training and Support. Together, these components give Astanza clients a complete range of training, marketing, and business consulting services to achieve success in this growing field. Astanza is an award-winning company that has received several accolades from leading industry organizations, including MyFaceMyBody and Aesthetic Everything. They are also certified as a and ranked #49 on Fortune’s 2023 Best Places to Work in Texas™ and #49 on Fortune’s Best Workplaces in Health Care™.

Astanza Laser is headquartered in Dallas, TX, with clients throughout North America and Europe. For product, investor, or press information, call (800) 364-9010, or visit. Connect with Astanza on , , , , and .

East Coast hoagie chain is ready to open 2nd Colorado location

The New Jersey-based sub chain said it is expanding to the Western U.S.CENTENNIAL, Colo. — A New Jersey-based sandwich chain is continuing its expansion into Colorado.PrimoHoagies announced it will hold the grand opening of its second Colorado location on Thursday.PrimoHoagies said a ribbon-cutting ceremony will begin at 9:45 a.m. Thursday with doors opening at 10 a.m. at ...

The New Jersey-based sub chain said it is expanding to the Western U.S.

CENTENNIAL, Colo. — A New Jersey-based sandwich chain is continuing its expansion into Colorado.

PrimoHoagies announced it will hold the grand opening of its second Colorado location on Thursday.

PrimoHoagies said a ribbon-cutting ceremony will begin at 9:45 a.m. Thursday with doors opening at 10 a.m. at 8170 S. Holly St. in Centennial.

Co-owned by Denver resident and Philadelphia native Bob Tunstall and Philadelphia local Aaron Borstein, the Centennial restaurant will offer the first 100 customers in line on July 27 a free Primo Size Hoagie. For the rest of the day, customers in the rewards program can get a Primo Size Hoagies for $6.99.

"The taste of PrimoHoagies is unlike any other sandwich. Always made fresh to order, with delicious meats and cheeses on an award-winning roll - you can’t get any better than that," Tunstall said. "We can’t wait to introduce the Centennial community to our gourmet Italian specialty sandwiches - or as we call them in Philly, hoagies!"

Originally founded in South Philadelphia in 1992, PrimoHoagies opened its first location in Colorado in May at 6200 Leetsdale Dr.

The company began to franchise in 1999 and now has franchise locations open across Pennsylvania, Delaware, Florida, Maryland, New Jersey, North Carolina, South Carolina, Texas and Colorado.

PrimoHoagies said a store in Westminster is in the works.

Credit: PrimoHoagies

The casual chain said it is known for its "gourmet hoagies with high-quality meats and cheeses piled high on freshly baked rolls."

PrimoHoagies told 9NEWS in 2021 that it has signed new franchise agreements to open five locations in Denver, part of a 18-restaurant expansion that also includes Florida, New Jersey, and Pennsylvania.

The chain said this is the first time it has expanded west of the Mississippi. PrimoHoagies currently has more than 100 locations nationally.

"We are incredibly excited and honored to open the first-ever PrimoHoagies in Colorado," said Denver franchisee Chris Maes. "When George and I saw the opportunity to expand this growing brand to the west, we knew it was a great fit for Denver. With ingredients so fresh and high-quality, you can’t get a better hoagie than this - I know our Denver neighbors are excited to get a first taste!"

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Camp Pickle Coming to Centennial Too

Robert Thompson’s Angevin & Co. is riding high atop the U.S. pickleball wave. In addition to an announced project in the Globeville Fox Park development, Camp Pickle is slated to open in Centennial “just off Arapahoe Road,” about 200 yards from Topgolf in 2024, according to PR sources.Thompson is getting back to his roots in developing an “eatertainment concept,” which he first founded in 2012 with Punch Bowl Social, offering a unique combination of play and dining th...

Robert Thompson’s Angevin & Co. is riding high atop the U.S. pickleball wave. In addition to an announced project in the Globeville Fox Park development, Camp Pickle is slated to open in Centennial “just off Arapahoe Road,” about 200 yards from Topgolf in 2024, according to PR sources.

Thompson is getting back to his roots in developing an “eatertainment concept,” which he first founded in 2012 with Punch Bowl Social, offering a unique combination of play and dining that grew into 20 national locations before the restaurateur sold out of his ownership stake (per What Now Denver).

This version of games n’ fun will be housed in a “1940s-era camp culture” setting with the ubiquitous paddle game as its centerpiece. This means 14 total pickleball courts with 11 indoors for all-season access. In addition to pickleball courts and leagues, Camp Pickle will feature duckpin bowling lanes, three karaoke rooms, and 10 dart lanes inside and an sprawling outdoor area featuring cornhole and horseshoes.

This competition, of course, will be supplemented by drinks and dishes. And the food won’t just be typical bar fare, either. James Beard Award Semifinalist Chef Manny Barella will serve as culinary director of Camp Pickle (as well as for another Thompson “smaller footprint” eatertainment project, Jaguar Bolera). Fittingly, the Monterrey, Mexico-born chef will be charged with combining wood-fired cooking techniques with Mexican-influenced eats.

“I’ve even had the awesome opportunity to stage at Loro, an Asian smokehouse meets Texas barbecue spot in Austin, where James Beard Award winners, Chef Tyson Cole of Uchi and Aaron Franklin of Franklin Barbecue balance both cuisines in very well executed dishes, despite the seemingly tremendous difference,” Barella told What Now Denver.

Currently in the “brainstorming phase” of menu creation, Barella said that people should “be ready for smoked proteins and crave worthy items.” Barella joins Camp Pickle after several national posts at luminary restaurants including at the celebrated Frasca Food & Wine in Boulder. Fortunately for Coloradans, Barella has been enjoying the state ever since. Now, he will have to sharpen his pickleball skills as well as his knives.

“I’m a competitor, so I’ll definitely be practicing,” Barella said.

Discover Why Colorado Is Called the Centennial State

Colorado is renowned for many things including its mountains, ski resorts, and abundant wildlife. Yet, none of those things contributed to the state’s nickname. Instead, Colorado earned its nickname in another way. Learn why Colorado is called the Centennial State...

Colorado is renowned for many things including its mountains, ski resorts, and abundant wildlife. Yet, none of those things contributed to the state’s nickname. Instead, Colorado earned its nickname in another way. Learn why Colorado is called the Centennial State, and see what other symbols the state has adopted throughout its time.

Why Is Colorado Called the Centennial State

Colorado is called the Centennial State because it gained statehood in 1876, 100 years after the signing of the Declaration of Independence. Thus, the state was organized during the country’s centennial. Colorado was officially organized into a state on August 1, 1876, about 100 years and four weeks after the signing of the Declaration of Independence.

Originally, parts of what would become the Colorado territory were contained in the Territory of Jefferson. This territory lasted from 1859 until 1861 when the area took on the name, Colorado Territory. The name was chosen because it means “colored red” in Spanish. That may refer to the red sandstone soil in the area or possibly the region surrounding the Colorado River.

Members of the Colorado Territory tried to obtain statehood in the years following the territory’s organization. However, President Andrew Johnson vetoed the bid for statehood in January 1867. The president provided several reasons for his veto including the area’s low population and the need for a census to ascertain which citizens wanted to join as a state.

Interestingly, the president may have had incorrect information about the number of people living in the area at the time. Some sources claimed that 30,000 people or fewer were in the state, but others claimed over 100,000 people live in the state.

In the late 1860s, the Denver Pacific Railway and Telegraph Company was formed. The company developed railways that would eventually make Denver a hub, bolstering support for Colorado’s statehood.

When Did Colorado Adopt the Nickname “The Centennial State?”

No official origin or adoption of the official nickname “The Centennial State” exists. Yet, some records seem to suggest that the name was introduced soon after Colorado joined the United States. If the nickname was furnished soon after the development of the state, we may never know who coined the phrase.

Although President Grant proclaimed Colorado’s statehood, the term “centennial state” was not included in it.

Nevertheless, the nickname remains, representing the hard work and resolve of the Colorado Territory officials that endeavored to get the territory admitted into the country.

What’s the Motto of Colorado?

Colorado’s official motto is a Latin phrase, “Nil Sine Numine.” This motto means “Nothing without the Divine Will.” Some alternative translations of the motto exist including “Nothing without Providence” or “Nothing Without the Deity.”

The state motto may have come from the Colorado Territory’s governor, William Gilpin, or Lewis Ledyard Weld, the territorial secretary. At least one source claims that the governor came up with the motto. One thing is certain: the motto appeared on the original seal for the territory.

This motto is on Colorado’s state seal. Interestingly, the Great Seal of the State of Colorado is the same as the territorial seal that was put forth in 1861. The only difference is that the seal features the words “State of Colorado” rather than “Territory of Colorado.” Also, the year on the bottom of the seal is 1876 instead of 1861. The seal was formally adopted and accepted in 1877.

The Great Seal of the State of Colorado has a lot of other symbolism included in its design as well. For example, the seal has miners’ tools, a pick, and a hammer, symbolizing the mining tradition in the state. A battle axe wrapped in a bundle of rods symbolizes strength, unity, and authority.

The words “Union and Constitution” run on red, white, and blue bands, demonstrating the state’s dedication to remaining faithful to the state’s virtues.

The Official State Animals of Colorado

Colorado has a wide variety of different animals and fossils that serve as symbols in the state. Each of them has some kind of symbolic importance to the state. For example, the state animal is the rocky mountain bighorn sheep, and they were as such in 1961. Wildlife experts once thought the species was extirpated in the state. Fortunately, the sheep made a great recovery starting in 1979 when herds were introduced to the area.

Meanwhile, the state bird is the lark bunting, a migratory bird that lives in the state. These birds were made the state bird of Colorado in 1931, also making them the first animal symbol in Colorado.

Other symbols in the state are less common. For example, Colorado has a state dinosaur, the Stegosaurus. The Stegosaurus was named the state dinosaur in 1982.

Colorado also has a state insect, the hairstreak butterfly, as well as state pets, rescue dogs, and rescue cats. Making rescue dogs and rescue cats the state pets was seen as a controversial move, but it passed in 2013. These animals each symbolize something special about the state, including animals discovered in the area to those held dear by its citizens.

Learning why Colorado is called “The Centennial State” may not be as exciting as the nicknames of other states. Simply put, the state was formed 100 years after the Declaration of Independence. That was during the United States of America’s centennial year. Unfortunately, no sources mention the origin of the nickname. Yet, a great deal of the state’s history is still readily available for viewing, including the push to make Colorado a state.

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About the Author

I've been a freelance writer since 2013, and I've written in a variety of niches such as managed service providers, animals, and retail distribution. I graduated from Rowan University in 2014. When I'm not working, I enjoy playing video games, reading, and writing for fun.

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