Group Camping
Group Campground — we can watch this one for cancellations.
Guide · California · Reviewed by OpenCampsite
Calaveras Big Trees State Park: reservations and availability alerts
Reservations for Calaveras Big Trees State Park in California are made through ReserveCalifornia.
This guide lists the locations we track, where to find reservation rules, and nearby alternatives.
What we track at Calaveras Big Trees State Park
All 8 can be watched for openings. The catalog records campground, environmental campsites, and group campground here.
How booking works on ReserveCalifornia
California State Parks sites release on a rolling window six months ahead of arrival, with a new day of inventory opening at 8 am Pacific every morning.
ReserveCalifornia has a native “Create Notification” workflow that emails you if a selected site becomes available. The notice does not hold the site, so you still need to book it before another camper does.
Reservation-system facts checked against official sources on September 9, 2026. Policies change — the reservation system's own pages are always authoritative.
Timing and seasons
We don't publish operating dates for individual locations at Calaveras Big Trees State Park. Check the location's official page on ReserveCalifornia for the dates available for your visit.
What's bookable at Calaveras Big Trees State Park
North Grove (sites 1-26)
Campground — we can watch this one for cancellations.
North Grove (sites 27-59)
Campground — we can watch this one for cancellations.
North Grove (sites 60-74)
Campground — we can watch this one for cancellations.
North Grove Environmental
Environmental Campsites — we can watch this one for cancellations.
Oak Hollow Campground
Campground — we can watch this one for cancellations.
Oak Hollow Environmental North
Environmental Campsites — we can watch this one for cancellations.
Oak Hollow Environmental South
Environmental Campsites — we can watch this one for cancellations.
See everything we track in this park — live alert status included — on the Calaveras Big Trees State Park coverage page.
Where Calaveras Big Trees State Park is
If Calaveras Big Trees State Park stays full
The closest places we also track, by straight-line distance from Calaveras Big Trees State Park's coordinates. Watching a fallback at the same time costs nothing — the free beta includes three trips at a time.
- Stanislaus National Forest
~12 miles · 21 locations we can watch
- New Melones Lake
~20 miles · 2 locations we can watch
- Indian Grinding Rock SHP
~21 miles · 1 location we can watch
- New Hogan Lake
~29 miles · 5 locations we can watch
- Eldorado National Forest
~36 miles · 38 locations we can watch
- Grover Hot Springs State Park
~38 miles · 2 locations we can watch
Cancellations and returned openings
For arrivals on or after July 1, 2026, a new statewide policy applies: cancel seven or more days out for a full site-fee refund minus the $8.25 cancellation fee; two to six days out forfeits the first night; inside 48 hours (or a no-show) forfeits everything.
California State Parks says most cancelled sites become bookable at 8 am the following morning. This is separate from the six-month release of new arrival dates, and does not mean every campground receives new availability each day.
The playbook
- Check the official reservation page for your dates and requirements before creating an alert.
- If your dates are sold out, choose the locations and dates you would book. We check ReserveCalifornia on an adaptive schedule.
- Choose email or text for each alert. Enable browser notifications separately for all your alerts.
- Consider nearby alternatives. Stanislaus National Forest is about 12 miles away and has 21 locations we can watch. These are straight-line distances, not driving distances.
- When an alert arrives, check availability and book on ReserveCalifornia. OpenCampsite doesn't take bookings or hold a reservation, and someone else may book the opening first.
Common questions
Does an alert reserve a place at Calaveras Big Trees State Park?
No. An alert tells you that a check found a matching opening. You still need to book on ReserveCalifornia, where availability can change before you finish.
Can I watch more than one location?
Yes. Choose the locations that work for your trip in the alert form. The list above shows which of the 8 locations we track at Calaveras Big Trees State Park currently support alerts.
How will I get notified?
Choose email or text for each alert. Enable browser notifications separately in Account to receive updates for all your alerts on connected devices.
Is a Calaveras Big Trees State Park alert free?
Free beta access includes three trips at a time, up to six campgrounds each, with no credit card required. Paid plans for faster checks or more trips are planned for after the beta.
What are the closest alternatives to Calaveras Big Trees State Park?
The nearest places we also track are Stanislaus National Forest (about 12 miles away), New Melones Lake (about 20 miles away), and Indian Grinding Rock SHP (about 21 miles away). Distances are straight-line distances between the coordinates in our catalog, not driving distances.
Put Calaveras Big Trees State Park on watch
Choose your locations and dates, then select email or text. We notify you when a check finds a matching opening. Browser notifications can be enabled separately for all your alerts.
Official sources
Reservation facts were checked on September 9, 2026, and campground inventory on October 10, 2026. Policies and seasonal rules change, so confirm your trip on the official pages below.