Porcupine Flat Campground
Yosemite National Park — lakeside, fishing, hiking
Location: Yosemite National Park, CA, CA
Price: From $24 per night
Rating: 4.1 out of 5 (130 reviews)
Season: May through October
Porcupine Flat is closed for the winter. Staying at Porcupine Flat Campground requires reservations. No first come, first serve sites are available.
Cell coverage (FCC estimate): weak signal. Actual signal may vary in remote areas. Best carrier: Verizon. Verizon 4G: 100%. AT&T 4G: 0%. T-Mobile 4G: 0%.
Amenities: Fire Rings, Picnic Tables, Vault Toilets, Drinking Water, Fishing
Availability alerts: Set a free cancellation alert at camperwatch.org/campground/porcupine-flat-campground to be notified when sites open up.
Porcupine Flat offers a quiet, scenic location 30 minutes west of Tuolumne Meadows with excellent access to Olmsted Point, Tenaya Lake, and Tioga Lake. Google reviewers rate it 4.5/5 stars and praise its nice setting, though some note small sites.
Wildlife alert: California Mule Deer, Bobcat, Coyote, Yellow-bellied Marmot, Common Raven, Mountain Quail, California Mountain Kingsnake, and Western Fence Lizard have been documented in the area.
Insider tips for Porcupine Flat Campground: Book early — no first-come, first-serve sites available; reservations required. Bring ample water supply; Google reviewers emphasized having enough water. Request higher ground sites; some campers reported flooding at lower elevation sites like site 14 during rain.
Skip Porcupine Flat Campground if: You need RV hookups — no hookups available; only suitable for self-contained RVs.. You're in a large RV — some sites are very small.. You require full facilities — reviewers noted restroom concerns..
Best time to visit Porcupine Flat Campground: Late June - Mid October — Campground opens late-June and closes mid-October; opening date varies with Tioga Road conditions and seasonal facility work..
Nearby campgrounds: Yosemite Creek Campground (Yosemite National Park, CA), North Pines Campground (Yosemite Valley, Yosemite National Park, CA), Camp 4 (YOSEMITE, CA), Upper Pines Campground (Yosemite Valley, CA).
Cell Phone Coverage at Porcupine Flat Campground
Cell signal at Porcupine Flat Campground (Yosemite National Park, CA): weak overall signal based on FCC broadband data. Best carrier: Verizon.
- Verizon 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.
Porcupine Flat is closed for the winter. Staying at Porcupine Flat Campground requires reservations. No first come, first serve sites are available.
Verified facts
RIDB / Recreation.gov official databaseAmenities
RIDB /facilities /campsites · owner-verifiedStraight talk
CamperWatch intel · curated from camper reportsKnown issues, each with the workaround. Read before you book.
Insider tips & when to go
CamperWatch intel · hand-curated entryBook early
no first-come, first-serve sites available; reservations required.
Bring ample water supply; Google reviewers emphasized having enough water.
Request higher ground sites; some campers reported flooding at lower elevation sites like site 14 during rain.
Campground opens late-June and closes mid-October; opening date varies with Tioga Road conditions and seasonal facility work.
Things to do nearby
RIDB /activities /recareas + intelConditions today
LiveCell signal
FCC BDC · quarterly datasetFCC maps are theoretical — camper reports confirm signal. Best carrier: Verizon.
Wildlife nearby
iNaturalist · research-grade · 8 kmLocation
Leaflet · OpenStreetMap tiles
Getting there →
The Porcupine Flat Campground is located off the Tioga Road 24 miles west from Tioga Pass, the park’s east entrance (35 minutes). From Yosemite Valley, take the Big Oak Flat Road and Tioga Road 38 miles (approximately 70 minutes). From Hwy. 120 west/Big Oak Flat Road, take the Big Oak Flat Road and Tioga Road 31 miles (45 minutes). You’ll find the campground north of the Tioga Road.
Campground entrance
Google Maps APICommunity
#community · posts, photos & Q&A · AI-moderated (Claude Vision)Pro tips
- Book on recreation.gov exactly 6 months ahead at 10am ET — Yosemite National Park fills fast in peak season.
- Check current road conditions at Yosemite National Park before arrival — seasonal closures common.
Frequently asked questions
RIDB facts + intel · FAQPage schema, speakableHow much does Porcupine Flat Campground cost per night?+
What season is Porcupine Flat Campground open?+
Does Porcupine Flat Campground have hookups?+
What is the maximum RV length at Porcupine Flat Campground?+
How do I make reservations at Porcupine Flat Campground?+
What is the cell service like at Porcupine Flat Campground?+
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●Data sources on this page
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