Marion Mountain
Sold out? Sites at Marion Mountain open up when campers cancel.
Campsite Tonight watches Recreation.gov 24/7 and adds an open site to your cart automatically — you just check out.
At a Glance
About Marion Mountain
Marion Mountain is a national park campground at San Bernardino National Forest in Riverside County, California. Reservations are managed through Recreation.gov. Campsite Tonight watches San Bernardino National Forest around the clock and automatically adds an open site to your Recreation.gov cart the moment a cancellation appears — so you just check out.
Marion Mountain is in very high demand — sites here routinely sell out well in advance. Cancellations are often the best way in, which is exactly what Campsite Tonight watches for.
The campground accommodates RVs and trailers up to 20 ft. Campers rate it 4.0/5 across 52 reviews.
Other campgrounds at San Bernardino National Forest include Fern Basin, Dark Canyon Campground , Boulder Basin and Black Mountain (san Bernardino).
Total reservations in May — 2023: 33 · 2024: 68 · 2025: 68
Location
Address
Idyllwild, California
Coordinates
33.7917, -116.7319
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open.
- •June sees 190 reservations - book early or set cancellation alerts.
Nearby Campgrounds
Fern Basin
San Bernardino National Forest
Dark Canyon Campground
San Bernardino National Forest
Stone Creek Campground
Mt. San Jacinto SP
Boulder Basin
San Bernardino National Forest
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Black Mountain (san Bernardino)
San Bernardino National Forest
Idyllwild Campground
Mt. San Jacinto SP
Photos
Marion Mountain FAQ
How far in advance should I book Marion Mountain?
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open. Mark your calendar for when the booking window opens (typically 5-6 months ahead). Also set alerts - cancellations do happen.
What is the busiest time at Marion Mountain?
June typically sees the highest reservation activity at Marion Mountain. During peak times, 100% of reservations are made 2+ weeks in advance.
Are there campsites available at Marion Mountain right now?
Yes! There are currently 158 site-nights available over the next 14 days at Marion Mountain, with availability on 12 different dates. Availability changes frequently due to cancellations - download the Campsite Tonight app to get instant alerts when new sites open up.
How often is availability checked at Marion Mountain?
Campsite Tonight monitors Marion Mountain for cancellations and new availability as fast as every 26 sec. When a site opens up, users with alerts enabled receive instant notifications so they can book before others.
Can I get a reservation at Marion Mountain?
Yes! Campers have recently secured reservations at Marion Mountain using Campsite Tonight's availability alerts. Even when fully booked, cancellations happen regularly. Set up an alert to get notified instantly when a site opens up.
Where is Marion Mountain located?
Marion Mountain is located in San Bernardino National Forest, near Idyllwild, California.
Track Availability at Marion Mountain
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