Rainbow Flowage is a 3,153 acre lake located in Oneida County. It has a maximum depth of 28 feet. Visitors have access to the lake from 5 public boat landings. Fish include muskie, walleye, northern pike, largemouth bass, smallmouth bass and panfish. According to the Wisconsin DNR, panfish are abundant on the flowage. Northern pike and walleye are listed as common. Largemouth bass and smallmouth bass are listed as present.