Live Chat I-90 Community Nearby Traffic Custer State Park 2024-04-24 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Custer State Park Hill City, SD 19.63 Pringle, SD 20.32 Keystone, SD 20.97 Interstate highway exits close to Custer State Park Exit 55, i90 46.48 Exit 57, i90 47.74 Exit 58, i90 48.27 Interstate highways close to Custer State Park i90 map 46.48 i25 map 178.51 i80 map 285.84 State roads close to Custer State Park US 16 SD map 1.03 US 385 SD map 2.60 US 16A SD map 3.96