Donley Reservoir   Be the first to submit input for Donley Reservoir. If you have info on Donley Reservoir, Rosebud County, Montana please submit it here to improve this web site.          These outdoors activities are available near Donley Reservoir.   Public Lands Near Donley Reservoir: Little Bighorn Battlefield National Monument, Crow Agency - MT, 54 miles away   Hotels Near Donley Reservoir: Super 8 Colstrip, Colstrip, 35 miles away Lakeview Bed & Breakfast, Colstrip, 35 miles away   Ski Areas Near Donley Reservoir: Antelope Butte, Wyoming, 81 miles away       1000 foot drop, 3 lifts, 18 runs