USFS Sets Record For Trail Permits in the Black Hills National Forest. Posted by John Axtell Date: January 02, 2021 126 Views The U-S Forest Service says it sold a record number of trail permits in 2020 for motorized vehicle usage in the Black Hills National Forest. Agency Motorized Trail Coordinator Corbin Herman says it sold more than 30,000 trail permits for motorcycles, UTVs, and ATVs – an increase of more than 10,000 from 2019 and significantly more than sold in the past. The motorized trail permit season in South Dakota runs from May 15 to Dec. 15, weather permitting. The Black Hills National Forest includes more than 3,600 miles of roads with more than 600 miles of trails for ATV, UTV and other off-road vehicles.