Morris Reservoir   Be the first to submit input for Morris Reservoir. If you have info on Morris Reservoir, Powder River County, Montana please submit it here to improve this web site.          These outdoors activities are available near Morris Reservoir.   Ski Areas Near Morris Reservoir: Antelope Butte, Wyoming, 83 miles away       1000 foot drop, 3 lifts, 18 runs Big Horn, Wyoming, 89 miles away       800 foot drop, 3 lifts, 20 runs