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Grasslands Triple Crown
Series Events
Three West River gravel events have routes that include a USFS National Grassland. The Grassland Gravel (Ft. Pierre National Grassland), Thunderhawk Wide Open (Grand River National Grassland) and Wheelin’ To Wall (Buffalo Gap National Grassland) events are offering a Grassland Triple Crown points series competition for the 2025 season.
Thunderhawk Wide Open
Lemmon, South Dakota
Saturday, August 16, 2025

Ride through some of the most iconic and remote land in the Old West and finish with a first-class celebration.If you’re into Wide-Open spaces, local culture, rich western history, art and live music you'll love the Thunderhawk Wide Open!



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