Keystone Mtn. (FR 40052) in ID -- Free Camping & Overnight Parking in Idaho

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Keystone Mtn. (FR 40052) in ID

Salmon-Challis NF, Challis-Yankee Fork Ranger District
9,116 ft
Maps
Overnight camping allowedRUTTED
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AT&TUNMEASURED
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A 13.2-mile stretch of dirt National Forest road in Custer County, ID. The road serves Keystone Mountain.

Salmon-Challis National Forest, Challis-Yankee Fork Ranger District allows dispersed camping here -- 14-day limit in any 30 days.

All 13.2 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (13.2 miles). Climbs 5,400 ft over 13.2 miles -- sustained grades near 22%, with pitches to 69%. Stretches run along a shelf with a drop of up to ~150 ft on the downhill side. Little level ground alongside -- few of the stretches measured have a flat spot to pull onto. Winds through 23 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch. Water crossings 9.2 and 9.2 miles in.

Private here -- the nearest through road is 1.6 miles off. Ramshorn Mountain stands 780 ft above the site, 1.5 miles southwest. The nearest town, Ketchum, is 52 mi off.

September normals 3359°F, 1.3″ rain. Monthly averages, PRISM 1991–2020.

Fire restrictions

Set by Salmon-Challis National Forest, Challis-Yankee Fork 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?