Swanholm Ridge (FR 251) in ID -- Free Camping & Overnight Parking in Idaho
Swanholm Ridge (FR 251) in ID
A 5.2-mile stretch of dirt National Forest road in Elmore County, ID. The road serves Granite Mountain. The road is open seasonally, June 16 to September 14.
Boise National Forest, Idaho City Ranger District allows dispersed camping here -- 14-day limit in any 30 days.
All 5.2 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (5.2 miles). Climbs 1,400 ft over 5.2 miles -- sustained grades near 14%, with pitches to 42%. Stretches run along a shelf with a drop of up to ~130 ft on the downhill side. Little level ground alongside -- few of the stretches measured have a flat spot to pull onto. Winds through 15 switchbacks.
Swanholm Peak stands 3,115 ft above the site, 3.1 miles east. Horse Heaven Creek runs 1.1 mi off. The nearest town, Robie Creek, is 35 mi off.
September normals 36–72°F, 0.9″ rain. Monthly averages, PRISM 1991–2020.
Set by Boise National Forest, Idaho City Ranger District. Stage 1 and 2 orders change within days -- check the current order before you build a fire.
fs.usda.gov