Mount Vernon South Dakota Traffic 2024-11-06 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mount Vernon South Dakota Plankinton, SD 18.04 mi Mitchell, SD 18.14 mi Stickney, SD 22.91 miInterstate highway exits close to Mount Vernon South Dakota Exit 319, i90 0.88 mi Exit 325, i90 8.84 mi Exit 310, i90 15.20 miInterstate highways close to Mount Vernon South Dakota i90 map 0.88 mi i29 map 118.81 mi i229sd map 119.98 miState roads close to Mount Vernon South Dakota US 281 SD map 15.17 mi SD 34 map 37.98 mi US 18 SD map 50.11 mi