Rainbow Lake   Be the first to submit input for Rainbow Lake. If you have info on Rainbow Lake, Pioneer Mountains, Beaverhead County, Montana please submit it here to improve this web site.          These outdoors activities are available near Rainbow Lake.   Public Lands Near Rainbow Lake: Bannack State Park, Montana, 19 miles away Beaverhead National Forest, Montana, 25 miles away Beaverhead Rock State Park, Montana, 29 miles away   Camp Grounds Near Rainbow Lake: Dinner Station Campground, Beaverhead County, 5 miles away Aspen Campground, Beaverhead County, 5 miles away Canyon Creek Campground, Beaverhead County, 7 miles away   Hotels Near Rainbow Lake: Comfort Inn Dillon, Dillon, 22 miles away GuestHouse Inn & Suites Dillon, Dillon, 22 miles away Best Western Paradise Inn, Dillon, 22 miles away Super 8 Dillon, Dillon, 22 miles away Copper King Hotel and Conventi, Butte, 33 miles away   Ski Areas Near Rainbow Lake: Discovery Ski, Montana, 43 miles away       1670 foot drop, 6 lifts, 48 runs Great Divide, Montana, 71 miles away       1503 foot drop, 6 lifts, 140 runs Lost Trail Powder Mountain, Montana, 75 miles away       1800 foot drop, 8 lifts, 45 runs   Whitewater Near Rainbow Lake: Big Hole River, Madison / BeaverheadCounty, 13 miles away       Class II - 56 miles long (Divide Bridge to Beaverhead River)