Welcome to Mad River Storage! We provide interior storage solutions to the McKinleyville, CA area. Our facility is secure with electronic gate entry and a fully fenced perimeter. We look forward to serving your self storage needs! Now Offering Warehouse Sized Unites , Several Sizes to Choose from 5 x 5 to 10 x 35 . Lighted , Fence, High & Dry, Security Cameras Indoor Vehicle Storage.