Live Chat I-90 Community Nearby Traffic Crystal Mountain (Poi peak) 2024-04-27 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Crystal Mountain (Poi Peak) Bethlehem, SD 12.44 Piedmont, SD 16.34 Black Hawk, SD 16.50 Interstate highway exits close to Crystal Mountain (Poi Peak) Exit 44, i90 12.29 Exit 46, i90 13.09 Exit 40, i90 14.08 Interstate highways close to Crystal Mountain (Poi Peak) i90 map 12.29 i25 map 216.94 i94 map 300.14 State roads close to Crystal Mountain (Poi Peak) US 385 SD map 5.51 US 14 SD map 12.24 US 14A SD map 22.31