Pine Flat Lake · California
Overview Trimmer Campground is a small facility on the shore of Pine Flat Lake in central California. Pine Flat Lake spans 20 miles in length and boasts 67 miles of shoreline. The lake, formed in 1954 with the completion of the Pine Flat Dam on the Kings River, is a recreation oasis for the area.
Sites at Trimmer Campground are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 10 |
|---|---|
| Site types | Standard, Tent only |
| Location | Piedra, CA |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
ItOpened scans the Recreation.gov calendar for Trimmer Campground around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Island Park | Cancellation alerts available |
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Page data refreshed 2026-10-29. Site facts come from the official directory listing for Trimmer Campground; cancellation statistics come from our own scanning logs.