No detected openings were recorded in the last 90 days. Campsite Sniper monitors Cougar Flat continuously and will alert you if that changes.
Of the 108 tracked site-nights (Sep 18 – Sep 26, 2026): 30 open for online reservation · 2 reserved · 30 on sites not offered for online reservation (first-come, first-served or administrative) · 46 unavailable (cause unspecified). Of the facility's 12 monitored sites, 6 can be reserved online and 6 are first-come, first-served.
Where the open windows are
Load status
Sep 18 – Sep 26, 2026Of the open site-nights on mapped sites, 18 fall on weekdays and 12 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Sep 2026September holds the most room. 30 of 108 site-nights are still open there.
Holiday windows
Sites open per night · of 12 sites| 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.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 001 | 5 |
| 002 | 5 |
| 005 | 5 |
| 006 | 5 |
| 011 | 5 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotThe next bookable night is Sep 22; the first open weekend starts Sep 25. Campsite Sniper can watch later dates for you.
Stays and site detail
Multi-night stays. 6 2-night, 6 3-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 22 at site 001.
RV length. Longest recorded site here is 40 ft. 6 sites take 25 ft, 3 sites take 35 ft, 1 site takes 40 ft. 4 sites of 12 have no recorded maximum and are not counted.
All 6 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 001 | Not recorded | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
| 002 | Not recorded | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
| 005 | 23 ft | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
| 006 | 28 ft | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
| 011 | 35 ft | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
| 012 | 36 ft | None | 5 | 5 nights | Sep 22, Sep 23, Sep 24, Sep 25, Sep 26 |
About Cougar Flat
Overview
Cougar Flat Campground is nestled into a mountain forest northwest of Naches, Washington. The campground offers an ideal setting for families and outdoor enthusiasts looking for a secluded camping experience in the beautiful Okanogan-Wenatchee National Forest.
Recreation
In addition to being a prime location for hiking, fishing, hunting, horseback riding and mountain biking in summer and early fall, Cougar Flat offers excellent skiing, snowshoeing and snowmobiling in the winter months.
Nearby Bumping Lake offers visitors opportunities to boat, fish, swim or simply relax on its sandy beach.
The campground is a great base camp for day-hikers and overnight backpackers. Several access trails from the area give hikers the chance to create their own excursions.
The American Ridge Trail is a popular among hikers and equestrians, meandering through more than 26 miles of towering forests, mountain meadows and high elevation lakes from the Bumping River to Pacific Crest Trail.
Nature lovers may also want to explore the nearby Goose Prairie Trail.
Facilities
Adjacent to the Bumping River, this campground offers eight standard sites, and four walk-in, tent only sites.
Sites are equipped with picnic tables and campfire rings with grills. Vault toilets and drinking water are also available. A boat ramp is located at the nearby Bumping Lake campground
Natural Features
Encompassing more than 4 million acres and stretching north to south from the Canadian border to the Goat Rocks Wilderness, the Okanogan National Forest offers countless recreation opportunities.
Visitors are afforded stunning scenic views, with high, glaciated alpine peaks, valleys of old growth forest and rugged shrub-steppe country making up the diverse landscape. Elevations range from below 1,000 feet to more than 9,000 feet.
The surrounding undeveloped wilderness, clean streams and diverse forests support an abundance of wildlife, including deer, porcupine, native fish and migratory birds. Endangered and threatened species, including the Northern Bald Eagle, the Northern Spotted Owl, gray wolves and grizzly bears, also find havens in nearby ecosystems.
Nearby Attractions
In the fall, thousands of visitors come to experience white water rafting on both the Tieton and American Rivers.
Visitors enjoy the Mt. Rainer National Park, where interpretive programs and exhibits offer education about the diverse landscape and history of the area.
The Pacific Crest Trail (PCT), one of the world's premier National Scenic Trails, showcases some of North America's most fantastic scenery, winding its way its way from Mexico to Canada through California, Oregon and Washington, and is accessible near the campground.
Getting there
From Naches, take Highway 410 to milepost 88.4, then turn left on Bumping Lake Road and continue for 6 miles.
View on Recreation.gov ↗ Get directions ↗
Photo gallery
FAQ
How do I get a reservation at Cougar Flat?
Reservations for Cougar Flat are made through Recreation.gov. 72.2% of tracked site-nights are not currently open for online reservation; 30 of 108 remain open. 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 14:17 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 Cougar Flat?
6 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 22 at site 001. Confirm and book on Recreation.gov.
Which sites at Cougar Flat fit a 35-foot RV?
3 of the 12 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft. 8 of those 12 sites have a recorded maximum length and 4 do not; they are not counted as fitting.
Which month has the most availability at Cougar Flat?
September 2026, with 30 open site-nights in the current snapshot of 108.
When is the next open date at Cougar Flat?
As of the Sep 18, 2026 snapshot: the next open date is Tue, Sep 22 and the next open weekend starts Fri, Sep 25. 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 Cougar Flat. One watch covers every matching online-reservable site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.
Alerts monitor online-reservable inventory only; first-come, first-served sites are not included.