Triangle Lake   Be the first to submit input for Triangle Lake. If you have info on Triangle Lake, Sawtooth Range, Elmore County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Triangle Lake.   Lakes Near Triangle Lake: Elk Lake, Boise County, 7 miles away Imogene Lake, Custer County, 14 miles away Hell Roaring Lake, Custer County, 16 miles away   Public Lands Near Triangle Lake: Sawtooth National Forest, Idaho, 24 miles away Challis National Forest, Idaho, 28 miles away Hagerman Fossil Beds National Monument, Hagerman - ID, 58 miles away   Camp Grounds Near Triangle Lake: Powerplant Campground, Elmore County, 6 miles away Queens River Campground, Elmore County, 7 miles away Graham Bridge Campground, Boise County, 9 miles away Johnson Creek Campground, Elmore County, 9 miles away   Ski Areas Near Triangle Lake: Soldier Mountain, Idaho, 31 miles away       1425 foot drop, 3 lifts, 36 runs Sun Valley, Idaho, 53 miles away       3400 foot drop, 19 lifts, 75 runs Bogus Basin, Idaho, 66 miles away       1800 foot drop, 7 lifts, 52 runs   Whitewater Near Triangle Lake: Payette River - South Fork, BoiseCounty, 12 miles away       Class III-IV - 23 miles long (Grandjean to Lowman)