National Parks near Grassy Lake Trail, Beaverhead County, Montana Grassy Lake Trail Main Page HIGH QUALITY TOPO MAP, CLICK HERE More Information about Grassy Lake Trail, Beaverhead County, Montana Nearest metro area is Butte-Silver Bow, Montana Click here for more outdoors activities near Butte-Silver Bow, Montana General Camping Information List of nearby National Parks: Craters Of The Moon National Monument, Arco - ID, 95.4 miles away Glacier National Park, West Glacier - MT, 148.6 miles away City Of Rocks National Reserve, Almo - ID, 171 miles away Hagerman Fossil Beds National Monument, Hagerman - ID, 176.6 miles away Yellowstone National Park, Yellowstone National Park - WY, 178.3 miles away * Distances listed are direct linear distances, actual travel distance may be different. Go to Montana Outdoors Index