Upper Pahsimeroi (FR 40118) in ID -- Free Camping & Overnight Parking in Idaho

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Upper Pahsimeroi (FR 40118) in ID

Salmon-Challis NF, Challis-Yankee Fork Ranger District
7,859 ft
Maps
Overnight camping allowedRUTTED
VerizonUNMEASURED
AT&TUNMEASURED
T-MobileUNMEASURED
StarlinkEXCELLENT

An 18.9-mile stretch of dirt National Forest road in Custer County, ID.

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

All 18.9 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (18.9 miles). Climbs 3,900 ft over 18.9 miles -- sustained grades near 12%, with pitches to 33%. Level ground alongside most of its length. Winds through 6 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch. Water crossings 7.9 and 17.3 miles in.

Borah Peak stands 4,799 ft above the site, 4.7 miles southwest. Mud Spring lies 1.1 mi off. The nearest town, Sun Valley, is 46 mi off.

September normals 31–64°F, 1.3″ rain. Monthly averages, PRISM 1991–2020.

Nearby Spots
Copper Basin (FR 40135) in IDForest Road Road27.3miCharcoal Creek (FR 40730) in IDDispersed Camping27.7miBellas Canyon (FR 40512) in IDDispersed Camping30.0miLake Cr. (FR 40507) in IDDispersed Camping30.7miRichardson Canyon (FR 40748) in IDDispersed Camping31.0mi
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?