Thunder Ridge MX Park

Thunder Ridge MX Park sits at Reliance, South Dakota, just off I-90 Exit 248. Three tracks on the property: a long, wide main track that uses real natural-terrain elevation, a supercross track for the technical-features crowd, and a peewee track for the youngest riders. The natural-terrain elevation on the main track is the property's defining character. South Dakota motocross is often associated with flat-state riding, but Thunder Ridge sits on real topography, which delivers lap variety that flat tracks can't match. The wide main-track design opens up passing lines and reduces the bottleneck pressure at tight turn entries. A 30-bike starting gate handles serious race-day operations. That gate size signals the property is built for actual multi-class race programming, not just casual practice gate work, the kind of infrastructure that supports running real championship races on the schedule. The supercross track is the technical-features specialty. Most regional South Dakota tracks run pure outdoor MX layouts; the dedicated supercross surface gives Thunder Ridge a genuine cross-discipline footprint on one property. Overnight camping with a pond on-site removes the weekend-overnight cost stack for longer stays. Concession stand operations on race days handle the food-and-drink basics without requiring a town run. For local riders in Lyman County and the broader central South Dakota region, Thunder Ridge is the closest dedicated multi-track motocross destination. Riders in Reliance, Kennebec, Chamberlain, Pierre, Mitchell, and the broader I-90 corridor across central South Dakota have everyday weekend access. Sioux Falls and Rapid City riders running the I-90 corridor stop in for weekend programming both directions. The I-90 Exit 248 location is the practical geographic identity, the property genuinely serves cross-state I-90 traffic in both directions. (605) 730-1338.