Summers Reservoir   Be the first to submit input for Summers Reservoir. If you have info on Summers Reservoir, Carter County, Montana please submit it here to improve this web site.          These outdoors activities are available near Summers Reservoir.   Public Lands Near Summers Reservoir: Medicine Rocks State Park, Montana, 25 miles away Devils Tower National Monument, Devils Tower - WY, 63 miles away   Camp Grounds Near Summers Reservoir: Lantis Spring Campground, Carter County, 5 miles away   Ski Areas Near Summers Reservoir: Terry Peak, South Dakota, 69 miles away       1100 foot drop, 6 lifts, 24 runs