Live Chat I-90 Community Nearby Traffic Big Arm State Park 2024-04-26 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Big Arm State Park Elmo, MT 7.33 Dayton, MT 7.71 Proctor, MT 14.44 Interstate highway exits close to Big Arm State Park Exit 47, i90 80.87 Exit 37, i90 81.22 Exit 43, i90 81.22 Interstate highways close to Big Arm State Park i90 map 80.87 i15 map 181.56 i84 map 398.19 State roads close to Big Arm State Park US 93 MT map 0.44 MT 35 map 18.71 MT 28 map 19.40