No detected openings were recorded in the last 90 days. Campsite Sniper monitors Masterson Group Campground continuously and will alert you if that changes.
Of the 30 tracked site-nights (Sep 18 – Oct 17, 2026): 26 open for online reservation · 4 reserved.
Where the open windows are
Load status
Sep 18 – Oct 17, 2026Of the open site-nights on mapped sites, 16 fall on weekdays and 10 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Oct 2026October holds the most room. 17 of 17 site-nights are still open there.
Holiday windows
Sites open per night · of 1 site| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked night.
Availability
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| G1 | 26 |
This site currently has 26 site-nights available.
Next windows
As of Sep 18, 2026 snapshotThe next bookable night is Sep 20; the first open weekend starts Oct 2. Campsite Sniper can watch later dates for you.
Stays and site detail
Multi-night stays. 2 2-night, 2 3-night, 1 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 20 at site G1.
RV length. Longest recorded site here is 70 ft. 1 site takes 25 ft, 1 site takes 35 ft, 1 site takes 40 ft.
All 1 site with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| G1 | 70 ft | None | 26 | 21 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +14 more |
About Masterson Group Campground
Overview
Tucked away in the towering pines of the Mendocino National Forest, the Masterson Campground is perfect for your next big get-together. The large grassy meadows of the campground are surrounded by a dense blanket of forest, offering visitors an outdoor experience of tranquility and solitude.
Recreation
The campground's open meadow areas allow for group games and activities, and a large fire ring provides the perfect place for a nighttime campfire circle and s'mores session. Plaskett Lake, a short one-mile walk from the campground, offers a variety of trout for the fishing enthusiast, as well as canoeing and other non-motorized boating activities. Mendocino National Forest's 913,306 acres of mountains and canyons allow for a variety of recreational opportunities, including hiking, backpacking, boating, fishing, hunting, nature study and off-highway vehicle riding. Whether it's deer, birds, rabbits, chipmunks or perhaps the occasional bear, wildlife viewing is always a popular activity for visitors. The area is also an extremely popular destination during hunting season.
Facilities
Masterson offers traditional primitive camping with the added convenience of toilets and running water. The site can hold up to 75 guests and 25 vehicles comfortably.
Natural Features
The Mendocino National Forest, California's only national forest that is not crossed by a paved road, straddles the eastern spur of the Coastal Mountain Range in northwestern California, just a three-hour drive north of San Francisco and Sacramento. Sprinkled throughout the dense green forest are several lakes, offering visitors additional recreational opportunities against a stunning and secluded backdrop.
Nearby Attractions
The nearby Plaskett Lake Campground is a family campground that can handle additional visitors for larger parties. The day use site at Plaskett Lake is a great place to spend the day. Plaskett Lake is also planted with trout.
Getting there
From Interstate 5, take the exit for Willows/Oroville Hwy 162 and head west. After about 23 miles turn right at the junction at County Road 306. Travel approximately four miles, then turn left onto 162/Forest Highway 7. After approximately 30 miles turn right at the Masterson Group Campground sign and follow the road for a quarter-mile to the gated entrance.
View on Recreation.gov ↗ Get directions ↗
Photo gallery
FAQ
How do I get a reservation at Masterson Group Campground?
Reservations for Masterson Group Campground are made through Recreation.gov. The current snapshot shows substantial availability: 26 of 30 tracked site-nights are open (86.7%), though availability can change. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 16:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
Can I get a multi-night stay at Masterson Group Campground?
2 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 20 at site G1. Confirm and book on Recreation.gov.
Which sites at Masterson Group Campground fit a 35-foot RV?
1 of the 1 site that support RV analysis has a recorded maximum of 35 ft or more; the longest recorded is 70 ft.
Which month has the most availability at Masterson Group Campground?
October 2026, with 17 open site-nights in the current snapshot of 17.
When is the next open date at Masterson Group Campground?
As of the Sep 18, 2026 snapshot: the next open date is Sun, Sep 20 and the next open weekend starts Fri, Oct 2. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Stop refreshing. Let the app watch it.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Masterson Group Campground. One watch covers every matching site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.