Over the last few seasons - I take my RV to Twin Anchors Campground about 16 east of JTS on highway 30. They have water and a dumpsite you an use. Outdoor storage only, but right on Highway 30 and never had any issues. Good luck!Looking for storage for a motor home near Ames or north of Ames along I 35. Minimum 10 x 34 X 12 high. Prefer indoor storage but would consider outdoor in secure area. Any ideas?