Summit Reservoir   Be the first to submit input for Summit Reservoir. If you have info on Summit Reservoir, Lost River Range, Custer County, Idaho please submit it here to improve this web site.          These outdoors activities are available near Summit Reservoir.   Lakes Near Summit Reservoir: Meadow Lake, Lemhi County, 15 miles away   Public Lands Near Summit Reservoir: Craters Of The Moon National Monument, Arco - ID, 36 miles away   Camp Grounds Near Summit Reservoir: Big Creek Campground, Lemhi County, 9 miles away   Ski Areas Near Summit Reservoir: Sun Valley, Idaho, 69 miles away       3400 foot drop, 19 lifts, 75 runs Lost Trail Powder Mountain, Montana, 75 miles away       1800 foot drop, 8 lifts, 45 runs Discovery Ski, Montana, 98 miles away       1670 foot drop, 6 lifts, 48 runs