Onion Valley Campground
The numbers that decide it
Recreation.gov publishes no site-level detail for this campground, so we cannot say what length of rig it takes. Call the managing office before committing to it in a large vehicle.
Site-level detail from Recreation.gov, checked 2026-08-05. Where a field says “not published”, the agency has not published it — it does not mean zero.
Onion Valley Campground
Onion Valley Campground is located on a beautiful creek in a remote location on a beautiful meadow. It is shaded by cedar, pine, and fir trees and is a pleasant escape.
Before you go
Season
October 15
Reservations
No
Fees
$18 per site
Hours
Typically stays open from Memorial Day to Labor Day
Accessibility
Restrooms
Make it a night on a better road
Byway plans the drive in — real stops, real weather, nothing invented.