Trinity Ridge (FR 129) in ID -- Free Camping & Overnight Parking in Idaho
Trinity Ridge (FR 129) in ID
A 40.2-mile stretch of dirt National Forest road in Elmore County, ID. The road is open seasonally, July 15 to November 10.
Boise National Forest, Mountain Home Ranger District allows dispersed camping here -- 14-day limit in any 30 days.
19.1 of the 40.2 miles in are maintained only for high-clearance vehicles. Dirt the whole way in (40.2 miles). Climbs 7,800 ft over 40.2 miles -- sustained grades near 14%, with pitches to 30%. Stretches run along a shelf with a drop of up to ~140 ft on the downhill side. Winds through 50 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch.
Red Mountain stands 1,587 ft above the site, 2.4 miles northeast. Anderson Creek runs 0.8 mi off. Travellers have camped along here. The nearest town, Mountain Home, is 29 mi off.
September normals 44–73°F, 0.7″ rain. Monthly averages, PRISM 1991–2020.
Set by Boise National Forest, Mountain Home Ranger District. Stage 1 and 2 orders change within days -- check the current order before you build a fire.
fs.usda.gov