1. Pictograph Caves State Park 3401 Coburn Rd, Billings, MT 59101 Coordinate: 45.73741,-108.43394 Phone: (406) 254-7342
2. Lake Elmo State Park 2300 Lake Elmo Dr, Billings, MT 59105 Coordinate: 45.83952,-108.47729 Phone: (406) 254-1310