Hidden Lake Reservoir   Be the first to submit input for Hidden Lake Reservoir. If you have info on Hidden Lake Reservoir, Fremont County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Hidden Lake Reservoir.   Public Lands Near Hidden Lake Reservoir: Harriman State Park, Idaho, 11 miles away Targhee National Forest, Idaho, 17 miles away Henrys Lake State Park, Idaho, 25 miles away Grand Teton National Park, Moose - WY, 68 miles away   Campgrounds Near Hidden Lake Reservoir: Harriman State Park, Island Park, 13 miles away Jessen's RV and Bed and Breakfast, Ashton, 13 miles away Ashton Inn and RV Park, Ashton, 14 miles away Henrys Lake State Park, Island Park, 14 miles away   Hotels Near Hidden Lake Reservoir: GuestHouse Inn St. Anthony, Saint Anthony, 16 miles away Island Park Village Resort, Island Park, 18 miles away Anglers Lodge, Island Park, 20 miles away Sawtelle Mountain Resort, Island Park, 25 miles away Super 8 Rexburg, Rexburg, 25 miles away   Hiking Trails Near Hidden Lake Reservoir: Myers Creek Trail, Fremont County, 14 miles away   Ski Areas Near Hidden Lake Reservoir: Kelly Canyon, Idaho, 30 miles away       1000 foot drop, 5 lifts, 26 runs Grand Targhee, Wyoming, 50 miles away       2212 foot drop, 5 lifts, 74 runs Big Sky, Montana, 53 miles away       4350 foot drop, 17 lifts, 150 runs   Whitewater Near Hidden Lake Reservoir: Henrys Fork, FremontCounty, 10 miles away       Class III-V - 11 miles long (Riverside Campground to above Upper Mesa Falls) Henrys Fork, FremontCounty, 16 miles away       Class II - 4 miles long (Box Canyon to Last Chance) Teton River, FremontCounty, 18 miles away       Class II-III - 6.3 miles long (Teton Dam site to Teton Forks)