Wagner Reservoir   Be the first to submit input for Wagner Reservoir. If you have info on Wagner Reservoir, Rosebud County, Montana please submit it here to improve this web site.          These outdoors activities are available near Wagner Reservoir.   Public Lands Near Wagner Reservoir: Hell Creek State Park, Montana, 39 miles away   Hotels Near Wagner Reservoir: Super 8 Colstrip, Colstrip, 46 miles away Lakeview Bed & Breakfast, Colstrip, 46 miles away   Ski Areas Near Wagner Reservoir: Antelope Butte, Wyoming, 99 miles away       1000 foot drop, 3 lifts, 18 runs