Necessity Reservoir   Be the first to submit input for Necessity Reservoir. If you have info on Necessity Reservoir, Powder River County, Montana please submit it here to improve this web site.          These outdoors activities are available near Necessity Reservoir.   Camp Grounds Near Necessity Reservoir: Holiday Campground, Powder River County, 3 miles away Red Shale Campground, Powder River County, 10 miles away   Hotels Near Necessity Reservoir: Holiday Inn Express MILES CITY, Miles City, 40 miles away Comfort Inn Miles City, Miles City, 40 miles away GuestHouse Inn & Suites Miles, Miles City, 40 miles away Super 8 Miles City, Miles City, 40 miles away Econo Lodge Miles City, Miles City, 40 miles away   Ski Areas Near Necessity Reservoir: Antelope Butte, Wyoming, 97 miles away       1000 foot drop, 3 lifts, 18 runs