From I-29, take the exit at Vermillion, and continue west along Highways 50 and 18. Cross the Missouri River at Pickstown, follow Highway 18 approximately 40 miles west.
From I-90, turn south at the Gregory/Winner exit; stay on Highway 47 to Gregory where you'll turn left (east). Drive 15 miles to Herrick.
For a southern route from the Black Hills, you can take Highway 44 or Highway 18 east. Either way has fabulous scenery. Highway 44 will take you closer to the Badlands, and Highway 18 crosses the Pine Ridge and Rosebud Indian Reservations. Both highways meet up at Winner, SD. From there, take Highway 18 east 45 miles (you'll travel past Colome, Dallas, Gregory and Burke) to Herrick.
29540 U.S. 18, Herrick, SD 57538, USA