Arco Pass (FR 40125) in ID -- Free Camping & Overnight Parking in Idaho

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Arco Pass (FR 40125) in ID

Salmon-Challis NF, Lost River Ranger District
5,928 ft
Maps
Overnight camping allowedRUTTED
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A 12.2-mile stretch of dirt National Forest road in Butte County, ID.

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

All 12.2 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (12.2 miles). Climbs 1,900 ft over 12.2 miles -- sustained grades near 14%, with pitches to 22%. Winds through 9 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch.

Secluded here -- no through road within 3.7 miles. King Mountain stands 4,672 ft above the site, 4.7 miles southwest. The nearest town, Carey, is 51 mi off.

September normals 37–72°F, 0.7″ rain. Monthly averages, PRISM 1991–2020.

Nearby Spots
Horsethief Canyon (FR 40566) in IDForest Road Road1.5miBriggs Canyon (FR 40275) in IDDispersed Camping2.3miBriggs Canyon Right Fork (FR 40533) in IDDispersed Camping2.6miJumpoff Peak (FR 40559) in IDForest Road Road3.5miRamshorn Canyon Spur 2 (FR 40706) in IDDispersed Camping5.0mi
Fire restrictions

Set by Salmon-Challis National Forest, Lost River 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?