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Trimmer Campground

Pine Flat Lake — lakeside, fishing, hiking

Location: Piedra, CA, CA

Price: From $20 per night

Rating: 3.8 out of 5 (72 reviews)

Season: May through October

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.

Cell coverage (FCC estimate): moderate signal. Actual signal may vary in remote areas. Best carrier: T-Mobile.

Amenities: Fire Rings, Picnic Tables, Flush Toilets, Showers, Fishing, Boat Launch

Availability alerts: Set a free cancellation alert at camperwatch.org/campground/trimmer-campground to be notified when sites open up.

Small 10-site facility on the shore of Pine Flat Lake with excellent lake views and a 4.3/5 rating from 67 Google reviews. Visitors praise the beautiful scenery and amenities including flush toilets, showers, and boat launch access.

Wildlife alert: Bald Eagles, Western Bluebirds, Ash-throated Flycatchers, Lesser Goldfinches, Common Side-blotched Lizards, and Western Aquatic Garter Snakes documented within 8km.

Insider tips for Trimmer Campground: Book early — this is a federal campground with only 10 sites and high demand. Site #1 and #2 offer excellent lake views according to camper reviews. Campground has hot water available despite lack of RV hookups.

Skip Trimmer Campground if: You need RV hookups — no hookups available, suitable for self-contained RVs only.. You prefer visiting outside May-October — seasonal operations only.. You require a large campground — only 10 total sites available..

Best time to visit Trimmer Campground: May-October — Campground operates seasonally May through October only..

Nearby campgrounds: Island Park (PIEDRA, CA), Kirch Flat Group Campground (Prather, CA), Camp Four And Half Cabin (DUNLAP, CA), Dinkey Creek (SHAVER LAKE, CA).

Cell Phone Coverage at Trimmer Campground

Cell signal at Trimmer Campground (Piedra, CA): moderate overall signal based on FCC broadband data. Best carrier: T-Mobile.

  • AT&T 4G LTE: 100% coverage
  • T-Mobile 4G LTE: 100% coverage

Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.

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Trimmer Campground — photo 1
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Pine Flat Lake — lakeside, fishing, hikingLive availability via Recreation.gov· synced every 30 min

Trimmer Campground

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Piedra, CA, CA★ 3.8 (72 reviews)From $20/nightFederal campground · book on Recreation.gov
On this page ↓OverviewConditionsPlan Your TripCommunity

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.

Best for:AnglersHikersBoatersFamiliesSites:TentRV
LIVE · weather + fire + AQI + availability + wildlife

Verified facts

RIDB / Recreation.gov official database
Check-in2:00 PM
Check-out12:00 PM
SeasonMay through October
Stay limit14 days
Max RV30 ft
HookupsNo hookups. Suitable for self-contained RVs.
PetsAllowed
CampfiresAllowed
Max/site6 people

Amenities

RIDB /facilities /campsites · owner-verified
Essentials
Fire RingsShowers
Recreation
Picnic TablesFishing
Family & Pets
Flush ToiletsBoat Launch

Straight talk

CamperWatch intel · curated from camper reports

Known issues, each with the workaround. Read before you book.

Known issuesFederal campground — book early. No hookups at most sites. Seasonal operations.
Skip it if:✕ You need RV hookups — no hookups available, suitable for self-contained RVs only.✕ You prefer visiting outside May-October — seasonal operations only.✕ You require a large campground — only 10 total sites available.

Insider tips & when to go

CamperWatch intel · hand-curated entry

Book early

this is a federal campground with only 10 sites and high demand.

Site #1 and #2 offer excellent lake views according to camper reviews.

Campground has hot water available despite lack of RV hookups.

Best: May-October

Campground operates seasonally May through October only.

Things to do nearby

RIDB /activities /recareas + intel

Conditions today

Live
at campground coordinates

Cell signal

FCC BDC · quarterly dataset
T-Mobile
4G · 100%
Verizon
4G · 0%
AT&T
4G · 100%

FCC maps are theoretical — camper reports confirm signal. Best carrier: T-Mobile.

Wildlife nearby

iNaturalist · research-grade · 8 km
Alert: Bald Eagles, Western Bluebirds, Ash-throated Flycatchers, Lesser Goldfinches, Common Side-blotched Lizards, and Western Aquatic Garter Snakes documented within 8km.

Location

Leaflet · OpenStreetMap tiles
Open in OpenStreetMap ↗
559-787-2589· Pine Flat Lake
adam.t.thompson@usace.army.mil
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.

Campground entrance

Google Maps API

Community

#community · posts, photos & Q&A · AI-moderated (Claude Vision)

Pro tips

  • Book on recreation.gov exactly 6 months ahead at 10am ET — Pine Flat Lake fills fast in peak season.
  • Check current road conditions at Pine Flat Lake before arrival — seasonal closures common.

Frequently asked questions

RIDB facts + intel · FAQPage schema, speakable
How much does Trimmer Campground cost per night?+
Trimmer Campground costs $20 per night. Hookup options: No hookups. Suitable for self-contained RVs.
What season is Trimmer Campground open?+
Trimmer Campground is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.
Does Trimmer Campground have hookups?+
No hookups. Suitable for self-contained RVs.
What is the maximum RV length at Trimmer Campground?+
Trimmer Campground can accommodate RVs up to 30 feet.
How do I make reservations at Trimmer Campground?+
Trimmer Campground is a federal campground — book 6 months ahead at Recreation.gov. Set a free CamperWatch cancellation alert to be notified the moment a site opens.
What is the cell service like at Trimmer Campground?+
According to FCC coverage maps, cell signal at Trimmer Campground is rated moderate. Best carrier: T-Mobile. FCC maps show theoretical coverage — actual signal in remote or heavily forested areas may be weaker.
What season is Trimmer Campground open, and what are check-in times?+
Trimmer Campground is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.
Compare campgroundsPlan a multi-stop trip
●Data sources on this page
Recreation.gov — Live site availability — updated every 30 min
recreation.gov · RIDB API
National Weather Service — Live hourly forecast + active alerts
api.weather.gov · open-meteo.com
Google Air Quality API — Live AQI at exact campground coordinates
airquality.googleapis.com
iNaturalist — Research-grade wildlife within 8km
api.inaturalist.org
Google Pollen API — Today’s tree, grass & weed pollen forecast
pollen.googleapis.com
FCC Broadband Map — Verizon, AT&T, T-Mobile 4G/5G coverage data
broadbandmap.fcc.gov · quarterly
Sunrise-Sunset.org — Sunrise, sunset & golden hour for today
api.sunrise-sunset.org
Google Street View — Campground entrance & access road imagery
maps.googleapis.com
RIDB — ADA sites, hookups, toilets, pets, campfire rules, bear boxes, max RV, activities, contact, directions
ridb.recreation.gov · /facilities /campsites /activities /links /recareas

CamperWatch never fabricates data. Where data is unavailable, it is not shown.

$20 /night★ 3.8 (72)
SeasonMay through October
Check-in2:00 PM
Check-out12:00 PM
Reserve on Recreation.gov ↗
Dates full? Get an availability alert
FAQ
How much does Trimmer Campground cost per night?+
What season is Trimmer Campground open?+
Does Trimmer Campground have hookups?+
All 7 questions →

Nearby Campgrounds

Island Park

PIEDRA, CA

From $10/night

Kirch Flat Group Campground

Prather, CA

From $20/night

Camp Four And Half Cabin

DUNLAP, CA

From $100/night

Dinkey Creek

SHAVER LAKE, CA

From $47/night

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