About the South Dakota figures: they are middle-of-the-market bands for standard sedans on open carriers from South Dakota lanes booked since 2023, as of September 2026, and season, fuel, the I-90 and I-29 corridors, and vehicle size all move them, with West River ranch and Hills addresses priced on the agreed meet point. The calculator gives the number we book.
East River, West River
South Dakotans split their state at the Missouri, and the shipping market agrees with them. East river belongs to Sioux Falls, sitting at the I-90 and I-29 junction with Minneapolis and Omaha capacity a short position away. West river belongs to Rapid City, which works off Denver’s market and the I-90 through-lane. The 350 miles between them is exactly why we quote by your actual bank of the river, and why both sides get honest windows instead of averages.
