Larsens Reservoir   Be the first to submit input for Larsens Reservoir. If you have info on Larsens Reservoir, Treasure County, Montana please submit it here to improve this web site.          These outdoors activities are available near Larsens Reservoir.   Public Lands Near Larsens Reservoir: Little Bighorn Battlefield National Monument, Crow Agency - MT, 30 miles away Bighorn Canyon National Recreation Area, Fort Smith - MT, 51 miles away   Hotels Near Larsens Reservoir: Super 8 Hardin, Hardin, 26 miles away Rodeway Inn Hardin, Hardin, 26 miles away   Ski Areas Near Larsens Reservoir: Antelope Butte, Wyoming, 69 miles away       1000 foot drop, 3 lifts, 18 runs