Letts Valley (FR 17N02) in CA -- Free Camping & Overnight Parking in California

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Letts Valley (FR 17N02) in CA

Mendocino NF, Grindstone Ranger District
3,807 ft
Maps
Overnight camping allowedRUTTED
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AT&TNONE
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A 24.6-mile stretch of dirt National Forest road in Colusa County, CA. The road serves Letts Valley 1-039 Dam. The road is open seasonally, April 16 to November 14.

Mendocino National Forest, Grindstone Ranger District allows dispersed camping here -- 14-day limit in any 30 days.

18 of the 24.6 miles in are maintained only for high-clearance vehicles. 23.6 of the 24.6 miles in are dirt. Climbs 4,700 ft over 24.6 miles -- sustained grades near 14%, with pitches to 28%. Stretches run along a shelf with a drop of up to ~150 ft on the downhill side. Winds through 41 switchbacks. Dead-end road -- no mapped turnaround; expect to back out or unhitch. Gates 8.7, 8.7, 9.5 and 10.1 miles in. A gate 9.3 miles in, signed private.

High Rock stands 2,563 ft above the site, 2.5 miles north. Letts Creek runs 0.3 mi off. The nearest town, Nice, is 15 mi off.

September normals 5581°F, 0.2″ rain. Monthly averages, PRISM 1991–2020.

Fire restrictions

Set by Mendocino National Forest, Grindstone 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?