Terry, there are many storage unit places closer to the airport, but then of course you'd have to rent a car. DIA Self Storage, for example, is less than 10 miles away. You can google map Denver International Airport, then "search nearby" for "self storage units" if you think that's something you might want to do. http://www.coloradoselfstorage.com/ Denver Locker
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Worse company I've encounter, owner is a racist he's stuck in the 1950 way of life and the daughter & husband smoke more cigarettes than and testing tube in a tobacco facility. Service sucks they have one poor individual working the entire warehouse and refuse to hire more help. They don't provide benefits and expect the worker to work like a slave with no sick days off.
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