Harry Mills BR 1B (FR 402.1) in SD -- Free Camping & Overnight Parking in South Dakota

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Harry Mills BR 1B (FR 402.1) in SD

Black Hills NF, Hell Canyon Ranger District
5,344 ft
Maps
Overnight camping allowedRUTTED
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An 11.2-mile stretch of dirt National Forest road in Custer County, SD. The road serves Twin Sisters. The road is open seasonally, May 15 to December 15.

Black Hills National Forest, Hell Canyon Ranger District allows dispersed camping here -- 14-day limit in any 28 days.

All 11.2 miles in are maintained only for high-clearance vehicles. 9.9 of the 11.2 miles in are dirt. Winds through 5 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch.

Private here -- the nearest through road is 0.8 miles off. Twin Sisters stands 563 ft above the site, 0.9 miles southeast. The nearest town, Custer, is 6.6 mi off.

September normals 4471°F, 1.5″ rain. Monthly averages, PRISM 1991–2020.

Fire restrictions

Set by Black Hills National Forest, Hell Canyon Ranger District. Stage 1 and 2 orders change within days -- check the current order before you build a fire.

fs.usda.gov
Sources checked August 2026Something wrong here?