Big Reservoir   Be the first to submit input for Big Reservoir. If you have info on Big Reservoir, Rosebud County, Montana please submit it here to improve this web site.          These outdoors activities are available near Big Reservoir.   Hotels Near Big Reservoir: Super 8 Colstrip, Colstrip, 28 miles away Lakeview Bed & Breakfast, Colstrip, 28 miles away   Ski Areas Near Big Reservoir: Antelope Butte, Wyoming, 91 miles away       1000 foot drop, 3 lifts, 18 runs