Live Chat I-90 Community Nearby Traffic KOA Campgrounds 2024-04-25 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to KOA Campgrounds Fulton, SD 16.73 Mount Vernon, SD 18.14 Ethan, SD 18.24 Interstate highway exits close to KOA Campgrounds Exit 330, i90 2.56 Exit 332, i90 2.72 Exit 335, i90 7.07 Interstate highways close to KOA Campgrounds i90 map 2.56 i29 map 100.71 i229sd map 102.82 State roads close to KOA Campgrounds SD 34 map 33.16 US 281 SD map 33.21 US 81 SD map 51.73