Openings · last 7 days
2
Booking reality
Campsite Sniper detected 2 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-233314
When Trimmer Campground reopens
Trimmer Campground's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
2
Openings · last 90 days
2
Only 2 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
02 · Availability Outlook · Sep 18, 2026 – Mar 19, 2027 · of 10 monitored sites
Of the 1,830 tracked site-nights (Sep 18, 2026 – Mar 19, 2027): 1,787 open for online reservation · 43 reserved.
Where the open windows are
2.3% of tracked site-nights are not currently open for online reservation. 1,787 of 1,830 remain open; here is where they are.
Load status
Sep 18, 2026 – Mar 19, 2027Not open online2.3%
Open site-nights1,787 / 1,830
Reserved (of online inventory)43 / 1,830
Weekday openings1,039
Weekend openings748
Of the open site-nights on mapped sites, 1,039 fall on weekdays and 748 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Mar 2027December holds the most room. 310 of 310 site-nights are still open there.
Holiday windows
Sites open per night · of 10 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open | |
| Thanksgiving | THU Nov 26 | 10 | Open |
| FRI Nov 27 | 10 | Open | |
| SAT Nov 28 | 10 | Open | |
| Christmas | THU Dec 24 | 10 | Open |
| FRI Dec 25 | 10 | Open | |
| New Year | THU Dec 31 | 10 | Open |
| FRI Jan 1 | 10 | Open |
Labor Day: no online availability on any tracked night. Thanksgiving: 10 sites are available for the complete three-night stay. Christmas: 10 sites are available for the complete two-night stay. New Year: 10 sites are available for the complete two-night stay.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 06 | 183 |
| 08 | 182 |
| 09 | 182 |
| 05 | 179 |
| 07 | 179 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotNext open dateFri · Sep 18
Next open weekendFri · Sep 18
The next bookable night is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Stays and site detail
1,787 open site-nights across 10 sites at Trimmer Campground, from the same hourly snapshot as everything above.
Multi-night stays. 23 2-night, 23 3-night, 16 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 06.
RV length. Longest recorded site here is 40 ft. 4 sites take 25 ft, 2 sites take 35 ft, 2 sites take 40 ft.
All 10 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 06 | 20 ft | None | 183 | 183 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +171 more |
| 08 | 20 ft | None | 182 | 182 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +170 more |
| 09 | 30 ft | None | 182 | 182 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +170 more |
| 05 | 20 ft | None | 179 | 166 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +167 more |
| 07 | 20 ft | None | 179 | 174 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +167 more |
| 10 | 20 ft | None | 179 | 153 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +167 more |
| 03 | 40 ft | None | 178 | 160 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +166 more |
| 04 | 20 ft | None | 177 | 159 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +165 more |
| 02 | 40 ft | None | 175 | 153 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +163 more |
| 01 | 30 ft | None | 173 | 153 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +161 more |
About Trimmer Campground
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.
Visitors can fish, boat, swim, hike and hunt from the facility, and several other activities can be accessed within a short drive.
Recreation
Boating, jet skiing, water skiing and fishing are some of the most popular activities at the lake, and a full-service marina is available.
The lake and surrounding watersheds have great fishing. Anglers will find wild trout above and in the lake, as well as large and smallmouth bass, bluegill, crappie, and planted trout.
Facilities
The campground is a small, single-looped facility with 10 individual campsites overlooking Pine Flat Lake.
Each campsite features a picnic table, campfire ring and grill. The campground has a well lit, accessible restroom with flush toilets and free hot showers.
A boat ramp and courtesy dock are adjacent to the campground, and a marina is close by.
Natural Features
Pine Flat Lake is situated where oak and pine forests meet in the foothills of the central Sierra Nevada Mountains. It sits in Kings Canyon at the western edge of Sequoia and Kings Canyon National Parks.
Wildlife spotting opportunities include bobcats and red-tailed hawks.
Nearby Attractions
Visitors can head upstream on Kings River to find superb whitewater rafting in spring and early summer, and scenic drives through Sierra National Forest and Kings Canyon National Park never cease to impress.
10 monitored sitesRVs up to 40 ftNo hookups4 shadedPets OKFire pitsMax party 8
Getting there
From Fresno, California, travel east on Highway 180/Kings Canyon Highway to Academy Avenue. Turn left onto Academy Avenue, and then turn right on Belmont Avenue. Continue traveling for approximately 26 miles; the entrance to Trimmer Recreation Area is on the right. NOTE: Belmont Avenue becomes East Trimmer Springs Road approximately 6 miles east of the Academy Avenue intersection.
Po Box 117, Piedra, CA 93649559-787-2589
BikingBoatingCampingFishingHikingHuntingSwimming SiteWater Sports
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233314 · facility + sites
Photo gallery
Roll CS-233314 · Trimmer Campground · Piedra CA12 frames · facility + sites
FAQ
How do I get a reservation at Trimmer Campground?
Reservations for Trimmer Campground are made through Recreation.gov. The current snapshot shows substantial availability: 1,787 of 1,830 tracked site-nights are open (97.7%), though availability can change. Campsite Sniper has also detected 2 site openings here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 15:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
How often do new openings appear at Trimmer Campground?
Campsite Sniper detected 2 site-date openings at Trimmer Campground in the last 7 days, 2 over 30 days and 2 over the last 90.
Can I get a multi-night stay at Trimmer Campground?
23 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 18 at site 06. Confirm and book on Recreation.gov.
Which sites at Trimmer Campground fit a 35-foot RV?
2 of the 10 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft.
Which month has the most availability at Trimmer Campground?
December 2026, with 310 open site-nights in the current snapshot of 310.
When is the next open date at Trimmer Campground?
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 18 and the next open weekend starts Fri, Sep 18. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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