Dead Horse Reservoir   Be the first to submit input for Dead Horse Reservoir. If you have info on Dead Horse Reservoir, Carter County, Montana please submit it here to improve this web site.          These outdoors activities are available near Dead Horse Reservoir.   Public Lands Near Dead Horse Reservoir: Medicine Rocks State Park, Montana, 24 miles away Devils Tower National Monument, Devils Tower - WY, 64 miles away   Camp Grounds Near Dead Horse Reservoir: Lantis Spring Campground, Carter County, 5 miles away   Ski Areas Near Dead Horse Reservoir: Terry Peak, South Dakota, 70 miles away       1100 foot drop, 6 lifts, 24 runs