Portal Forebay Campground in CA -- Campground & RV Camping in California
Portal Forebay Campground in CA
Overnight stays are allowed only at the designated sites here.
Our source here is thin -- confirm on the ground before you commit.Campground at Portal Forebay Lake on Kaiser Pass Road in Sierra National Forest. Shaded by pine and cedar trees. Each site has picnic table, grill, and bear-proof food storage locker. Vault toilets; no drinking water available. Paved and dirt road access. Open June–September; $32/night single sites, $61/night double sites, plus $10 extra vehicle fee; $2–$4 holiday surcharge.
Grounded in fs.usda.gov · read August 24, 2026Road difficulty 3 of 5 -- a rough drive in. Recorded as maintained only for high-clearance vehicles, dirt, pitching to 8%, 10% of it on a shelf.
Kaiser Ridge stands 3,439 ft above the site, 2.9 miles south. The Portal Forebay shoreline is 0.1 mi off. The nearest town, Mammoth Lakes, is 22 mi off.
September normals 41–70°F, 0.6″ rain. Monthly averages, PRISM 1991–2020.