Live Chat I-90 Community Nearby Traffic Iron Mountain Parking (Transport parking) 2024-06-19 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Iron Mountain Parking (Transport Parking) Hill City, SD 18.78 Rapid City, SD 18.83 Custer, SD 20.97 Interstate highway exits close to Iron Mountain Parking (Transport Parking) Exit 55, i90 27.34 Exit 57, i90 27.92 Exit 58, i90 28.32 Interstate highways close to Iron Mountain Parking (Transport Parking) i90 map 27.34 i25 map 198.77 i80 map 297.35 State roads close to Iron Mountain Parking (Transport Parking) US 16A SD map 0.67 SD 244 map 2.20 US 16 SD map 3.98