Marten Lake   Be the first to submit input for Marten Lake. If you have info on Marten Lake, Sawtooth Range, Custer County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Marten Lake.   Lakes Near Marten Lake: Langer Lake, Custer County, 10 miles away Josephus Lake, Custer County, 13 miles away Elk Lake, Boise County, 15 miles away   Public Lands Near Marten Lake: Challis National Forest, Idaho, 21 miles away Sawtooth National Forest, Idaho, 38 miles away   Camp Grounds Near Marten Lake: Thatcher Creek Campground, Custer County, 4 miles away Lola Creek Campground, Custer County, 6 miles away Grandjean Campground, Custer County, 7 miles away Inlet Campground, Custer County, 7 miles away   Ski Areas Near Marten Lake: Soldier Mountain, Idaho, 46 miles away       1425 foot drop, 3 lifts, 36 runs Sun Valley, Idaho, 60 miles away       3400 foot drop, 19 lifts, 75 runs Tamarack, Idaho, 69 miles away       2800 foot drop, 8 lifts, 42 runs   Whitewater Near Marten Lake: Marsh Creek, CusterCounty, 5 miles away       Class II-III - 6 miles long (State Highway 21 to Middle Fork Salmon) Payette River - South Fork, BoiseCounty, 7 miles away       Class III-IV - 23 miles long (Grandjean to Lowman) Salmon River - Middle Fork, CusterCounty, 9 miles away       Class III-IV - 8 miles long (Marsh Creek to Boundary Creek)