itOpened Guides · Yosemite National Park
How to actually get a site at Porcupine Flat Campground — the verified facts, the release reality, and the cancellation route in.
Watch it with itOpened
Proof, from our own scanners: 673 confirmed openings across 34 campgrounds since Oct 29, 2026 — each one re-verified before logging. See the live cancellation index.
Watch Porcupine Flat CampgroundFree to start. We never book, hold, or resell — you book it yourself, in your own account, at the normal price. Fees pay for monitoring; openings are first-come and cannot be guaranteed.
Overview Staying at Porcupine Flat Campground requires reservations. No first come, first serve sites are available. The campground typically opens in late-June and closes mid-October. The opening date varies depending on the opening of the Tioga Road and related seasonal facility and road work. Porcupine Flat Campground is located off the Tioga Road about 30 minutes west of Tuolumne Meadows and over an hour from Yosemite Valley. RVs and Trailers are not recommended for the narrow roads in this more primitive campground.
| Total sites | 56 |
|---|---|
| Site types | Standard, Tent only |
| Site mix (directory count) | Standard 49 · Tent only 7 |
| Area | Yosemite National Park |
| Managed by | National Park Service |
| Activities | Backpacking, Birding, Camping, Climbing, Fishing, Hiking, Photography, Star Gazing, Swimming, Wilderness |
| Directory phone | 209-379-2123 |
| Official listing | Recreation.gov campground page |
| Book through | Recreation.gov |
Porcupine Flat Campground is reserved through Recreation.gov, on the release pattern stated in its official listing. In demand, reservable sites are claimed within minutes of each release — which is why the campground reads as sold out for most of the year, and why the realistic route in is rarely the release itself.
Sites booked months ahead get cancelled as trips fall through, and each cancellation returns its nights to the official calendar instantly — first-come, no waitlist, no announcement. itOpened scans the Recreation.gov calendar for Porcupine Flat Campground around the clock; when a site matching your dates and vehicle opens, you get a text with a direct link, and you book it yourself, in your own account, at the normal price. We never book, hold, or resell. The mechanics are the same ones documented in how campsite cancellations actually work.
Watch more than one calendar. These nearby or same-area campgrounds take the same trip — and their cancellations are independent chances:
| Tuolumne Meadows Campground | 309 sites · same area |
|---|---|
| Upper Pines Campground | 240 sites · same area |
| Crane Flat Campground | 151 sites · same area |
| Hodgdon Meadow Campground | 108 sites · same area |
| Bridalveil Creek Campground | 107 sites · same area |
Full directory facts and sibling campgrounds: Porcupine Flat Campground campground page · Yosemite National Park park page.
Watch it with itOpened
Proof, from our own scanners: 673 confirmed openings across 34 campgrounds since Oct 29, 2026 — each one re-verified before logging. See the live cancellation index.
Watch Porcupine Flat CampgroundFree to start. We never book, hold, or resell — you book it yourself, in your own account, at the normal price. Fees pay for monitoring; openings are first-come and cannot be guaranteed.
Every figure in this article traces to one of the sources above. If a number isn't sourced, we don't print it.
Last updated 2026-10-30.