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Underground RV Storage: Pros and Cons of Subsurface Storage

Many RV owners must find a spot to park their rig when they’re not using it. Typically, the most common options are outdoor, covered, and indoor storage. But did you know underground RV storage exists?

For people in certain parts of the country, this is a unique option worth considering. Today, we’re going below the surface to look at the pros and cons of underground RV storage. Let’s dig in!

Did You Know You Can Store Your RV Underground?

As its name indicates, underground RV storage is an option in some locations for subsurface RV parking. We were surprised to learn of this option, as it’s hard to imagine a cave big enough to store one RV, let alone enough to run a storage business.

These facilities can go hundreds of feet underground and keep your RV safe from the elements and from burgularly when you’re not using it. The largest locations can house thousands of vehicles. If there’s a location near you, there are numerous reasons you should consider it.

Tour Wampum Underground in Pa.

Where Can You Store An RV Underground?

Underground RV storage facilities typically used to be limestone mines. While they’re uncommon, several gigantic facilities offer underground RV storage nationwide. These massive underground facilities are perfect for storing large vehicles like motorhomes, travel trailers, boats, and other automobiles. They also store for commercial and warehousing purposes, as the underground conditions meet many logistics and freight requirements.

Some of the most popular underground RV storage locations are:

Some are larger and deeper than others, but they offer the same general environment. Your RV, boat, or other vehicle can rest peacefully until it’s time for your next adventure.

underground rv storage
Places like Wampum have subsurface RV storage in caves. (Source: Wampumunderground.com)

Pros of Underground RV Storage

So, what’s so special about underground RV storage? Let’s look at some benefits of this option for your camper.

Protection from the Elements

One of the most significant benefits of underground RV storage is the protection from the elements. Here, you won’t have to worry about rain, snow, or other weather conditions messing up your rig.

Because these spots are 100 or more feet underground, UV rays and sun damage are not a problem either. If there’s any place where the sun doesn’t shine, this is one of them. 

Enhanced Security

When you’re paying to store your camper, the most significant concern you have is security. You don’t want to worry that you’ll return to find your RV is missing. Luckily, many underground RV storage facilities have the tightest security available.

Because they sit a hundred feet under the surface, it takes work to get in and out. Thieves can’t just hop a fence or take off with your camper. They’ll have a few hoops to jump through to retrieve your rig.

Climate-Controlled

When you’re this far underground, the temperature stays consistent year-round. While it can vary by the facility, it’s typically around 63 to 68 degrees Fahrenheit. This means you won’t have to winterize your RV at the end of the season. Most of the areas are also humidity-controlled.

You also won’t have to worry about the potential for damaged plumbing from frozen water lines. When it’s time for your next big adventure, your rig will be ready to go.

Rodent-Free

Another significant benefit of underground RV storage is that these facilities are often rodent-free. Mice and other critters that will gladly set up residence for the winter in your camper cannot survive this far underground.

If you’ve ever battled a rodent infestation, you know how painful and frustrating it can be. Luckily, this is another thing you won’t have to worry about if you choose this option for storing your camper.

The ability to store your RV in a climate-controlled underground is a value-add.

Reading Suggestion: Learn additional benefits of covered RV storage.

Cons of Underground RV Storage

While underground RV storage has its perks, there are also disadvantages. Let’s look at some of the reasons you might want to reconsider.

Cost

Like other types of RV storage, underground options vary considerably from one facility to the next. However, if you have a larger camper, you could be looking at paying upwards of $200 per month or more. While this is typically more than outdoor storage, it is usually cheaper than storing in a building.

So, you just have to remember the benefits of covered, climate-controlled storage for the longevity of your camper. One could argue it’s worth the premium price to have more protection for your camper.

Limited Availability

The availability of underground storage is less common than other RV storage solutions. These facilities are excellent when they’re available. Unfortunately, they aren’t as common as storage buildings or outdoor lots. The nearest one to you could easily be hundreds of miles away. If that’s the case, it probably won’t be a practical option for you and your rig.

indoor motorhome
Unlike other indoor RV storage, underground facilities might have more restrictions for access.

Accessibility

While restricted access helps ensure your RV stays safe, it can be an inconvenience when retrieving your rig. You typically must schedule a time to pick up your camper with the facility. They may also have to move other RVs, and it can take some effort. And while an underground cave can be exciting, it might also be a little nerve-wracking to drive through the first few times!

Size Restrictions

Not all underground RV storage options are the same. Some will have more clearance and space for maneuvering than others. Before reserving a spot for your rig, confirm size restrictions with the facility. You don’t want to show up and discover that your rig is too big for the location.

However, some of the largest facilities in the country have 15+-foot ceilings and room for thousands of vehicles. Many of these businesses can serve semi-trucks. However, some are smaller operations that may not have as much space. Do yourself a favor and call or visit the location before committing.

Pro Tip: Winterizing your RV is an important step in the storage process.

❄️RV Winterization: An Easy Step-by-Step Guide & Checklist ✅

Is Underground RV Storage Worth It?

Underground RV storage is an excellent option for many people. Typically, once you park your rig in these spots, you’ll want to keep it there for the remainder of the season. This can make spontaneous or last-minute trips challenging. However, the extra protection the facility provides can be worth every penny.

Would you use underground RV storage? We’d love to hear your thoughts in the comments below.

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About Cait Morton

Co-Founder, Logistics Queen, Business & Content Manager, and Animal Lover

An Upper Peninsula of Michigan native (aka a Yooper), Caitlin is the organization, big-picture, and content strategy queen of our operation. She keeps everything orderly and on track.

With a background in Business Management, she supports and helps channel Tom’s technical prowess into the helpful content our readers and viewers expect. That’s not to say you won’t find her turning wrenches and talking shop – RV life is a team effort. She keeps the business and the blog moving forward with a variety of topics and resources for our audience.

Believe it or not, she is rather camera shy, though she co-hosts the Mortons’ personal videos and The RVers TV show.

Caitlin’s passion lies in outdoor recreation and with animals. Some of her favorite things to do are hiking, biking, and getting out on the water via kayak, SUP, or boat.

She also loves the RV life due to the fact that you can bring your pets along. Sharing information about safely recreating outdoors with your whole family – pets included! – is very important to her. Because of this, Caitlin spearheaded the launch of HypePets in 2023.

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