Rainbow Lake   Be the first to submit input for Rainbow Lake. If you have info on Rainbow Lake, Tama County, Iowa please submit it here to improve this web site.          These outdoors activities are available near Rainbow Lake.   Lakes Near Rainbow Lake: Otter Creek Lake, Tama County, 10 miles away Lake Ponderosa, Poweshiek County, 19 miles away   Public Lands Near Rainbow Lake: Union Grove State Park, Iowa, 24 miles away Rock Creek State Park, Iowa, 30 miles away Lake Keomah State Park, Iowa, 32 miles away   Marinas On or Near Rainbow Lake: Lake Ponderosa Marina, Montezuma, 20 miles away   Hotels Near Rainbow Lake: Baymont Inn and Suites Brooklyn, IA, Brooklyn, 11 miles away Super 8 Toledo, Toledo, 12 miles away Country Inn By Carlson Grinnell, Grinnell, 23 miles away Comfort Inn & Suites Grinnell, Grinnell, 23 miles away Super 8 Grinnell IA, Grinnell, 23 miles away   Ski Areas Near Rainbow Lake: Fun Valley, Iowa, 20 miles away       240 foot drop, 5 lifts, 14 runs