Largest Storage in Missoula MT! Copperstone Stor-All is dedicated to providing quality, cleanliness, convenience, and secure units to the Missoula area. Our goal is to gain your trust and give you more for your money. Find your perfect unit size and start storing today! Address: 8700 Roller Coaster Road Missoula, Montana. (406)-728-7867 Website: www.copperstonestorage.com/