Upper Sage Flat
Inyo National Forest
Upper Sage Flat in California has 13 open booking windows on Recreation.gov right now, the soonest Sun Aug 30–Wed Sep 2. Reserve directly through the booking link above — cancellations go fast. To catch future openings the instant they appear, set a free CampSage cancellation alert.
📷 What these sites look like
Photos of sites that are open right now, from recreation.gov. Angles vary by park — usually the site and its parking pad.
⚡ EV charging nearby
Nearest DC fast charging: 16.4 mi away (straight line).
Distances are straight-line, not driving — the road can be much longer where a river, a lake or a canyon sits in between. From OpenStreetMap — community-mapped, so plug types can lag reality. Verify on your charging network’s app before counting on a charger.
🔭 Planning further ahead?
We watch the next 60 days closely — that's where cancellations show up. recreation.gov takes bookings out to about February 2027, so there may be 2+ night stays past our window.
📊 How often sites open up here
CampSage's scans caught 22 openings at Upper Sage Flat over the last 30 days, on 21 separate days, most of them for stays 9–36 days out and the openings typically covered 2–3 nights.
These are the openings our own scans saw — not a figure the booking system publishes. We re-check availability several times a day, so the real number can be higher.
🏕️ About this campground
Ratings
📶 Cell coverage camper-reported
💡 Insider tips from campers
❓ Upper Sage Flat FAQ
How do I reserve a campsite at Upper Sage Flat?
Upper Sage Flat in California takes campsite reservations through Recreation.gov. On this page, use the “Book / check availability” button to open the live booking page, see which dates are free, and reserve your site.
How much does it cost to camp at Upper Sage Flat?
Campsite fees at Upper Sage Flat run about $29/night, as listed by Recreation.gov. Exact rates vary by site type, number of campers, and season.
How can I get a spot at Upper Sage Flat when it's fully booked?
Popular campgrounds like Upper Sage Flat often fill months ahead, but campers cancel every day and those sites reopen for booking. CampSage checks availability for you and sends a free email the instant a cancellation opens — set an alert on this page and you can grab the spot before anyone else.
How often do campsites open up at Upper Sage Flat?
CampSage's scans caught 22 openings at Upper Sage Flat over the last 30 days, on 21 separate days, most of them for stays 9–36 days out and the openings typically covered 2–3 nights. These are the openings our own scans saw — not a figure the booking system publishes. We re-check availability several times a day, so the real number can be higher.
Is Upper Sage Flat a good campground?
Upper Sage Flat holds an average rating of 4.5/5 from 175 camper ratings on Recreation.gov. The full star breakdown is shown above.
Is there cell service at Upper Sage Flat?
Of the carriers campers have reported on at Upper Sage Flat, Verizon rates highest at 0.1 out of 5 from 53 reports. See the carrier-by-carrier breakdown above — service can still vary by campsite, terrain, and weather.
Where is Upper Sage Flat located?
Upper Sage Flat is located in Eastern Sierra / Mammoth, California. Tap “Directions” above for driving directions, or see nearby campgrounds lower on this page.
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