Corny Coulee Reservoir   Be the first to submit input for Corny Coulee Reservoir. If you have info on Corny Coulee Reservoir, Custer County, Montana please submit it here to improve this web site.          These outdoors activities are available near Corny Coulee Reservoir.   Public Lands Near Corny Coulee Reservoir: Little Bighorn Battlefield National Monument, Crow Agency - MT, 64 miles away   Camp Grounds Near Corny Coulee Reservoir: Rosebud Campground, Rosebud County, 8 miles away   Hotels Near Corny Coulee Reservoir: Super 8 Colstrip, Colstrip, 27 miles away Lakeview Bed & Breakfast, Colstrip, 27 miles away   Ski Areas Near Corny Coulee Reservoir: Antelope Butte, Wyoming, 86 miles away       1000 foot drop, 3 lifts, 18 runs