Openings · last 7 days
0
01 · Detected Opening History · the openings record · file CS-234310
When Lost Lake Group Unit reopens
Lost Lake Group Unit's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
0
Openings · last 90 days
7
Only 7 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
02 · Availability Outlook · Sep 18 – Oct 16, 2026 · of 1 monitored site
Of the 29 tracked site-nights (Sep 18 – Oct 16, 2026): 26 open for online reservation · 3 reserved.
Where the open windows are
10.3% of tracked site-nights are not currently open for online reservation. 26 of 29 remain open; here is where they are.
Load status
Sep 18 – Oct 16, 2026Not open online10.3%
Open site-nights26 / 29
Reserved (of online inventory)3 / 29
Weekday openings16
Weekend openings10
Of 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. 16 of 16 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 |
|---|---|
| 01 | 26 |
This site currently has 26 site-nights available.
Next windows
As of Sep 18, 2026 snapshotNext open dateMon · Sep 21
Next open weekendFri · Sep 25
The next bookable night is Sep 21; the first open weekend starts Sep 25. Campsite Sniper can watch later dates for you.
Stays and site detail
26 open site-nights across 1 site at Lost Lake Group Unit, from the same hourly snapshot as everything above.
Multi-night stays. 1 2-night, 1 3-night, 1 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 21 at site 01.
RV length. Longest recorded site here is 45 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 |
|---|---|---|---|---|---|
| 01 | 45 ft | None | 26 | 26 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +14 more |
About Lost Lake Group Unit
Overview
Lost Lake Group Site is located in Lost Lake Campground which is situated on the northern edge of Lost Lake on the Tonasket Ranger District of the Okanogan-Wenatchee National Forest. Set beneath mixed-conifer forest and surrounded by mountains, this campground offers one group site, suitable for large family and group camping excursions as well as several non-reservable single and double sites.
Recreation
Lost Lake Campground offers outdoor enthusiasts the opportunity to hike, fish, and enjoy a long list of outdoor recreational activities. Anglers enjoy boat fishing (with an electric motor only) for rainbow and triploid eastern brook are available in abundance. A boat ramp is available in the campground. For an easy, interpretive hike for the whole family, the Big Tree Trail starts across the road from the Lost Lake guard house at the entrance to the campground. This 0.8 mile trail connects with a loop trail that highlights two 600-year old western larch trees. It is particularly beautiful when the wildflowers are out in June. Another great hike is the Strawberry Mt. Trail that starts just outside the Campground entrance and travels 1.5 miles up to Strawberry Mt.
Facilities
This campground has one designated group site, able to accommodate up to 100 people. The site is equipped with picnic tables, campfire rings, grills, drinking water and flush toilets. Access to Lost Lake beach and Lost Lake Amphitheater are within walking distance.
Natural Features
The Lost Lake area offers a medium sized lake with scenic views, forested mountains, abundant wildlife, and a few hiking trails. Visitors to the area can expect many days of warm, sunny weather in the summer, and winters with clear skies and plenty of snow. The surrounding area has clean streams and diverse forests that support an abundance of wildlife, including deer, porcupine, black bear, cougar, native fish, common loon, bald eagles, and migratory birds. Endangered and threatened species, including gray wolves and Canada lynx, also find havens in nearby ecosystems.
1 monitored siteRVs up to 45 ftNo hookups1 shadedWaterfrontLakefrontPets OKFire pitsMax party 100
Getting there
From Tonasket, Washington, take State Route 20 east for 24 miles. Exit at the Bonaparte Recreation Area on Qkanogan County road 4953, which turns into National Forest System road 32. Continue on National Forest System road 32 for 4 miles to National Forest System road 33. Take the left fork onto National Forest System road 33, traveling north for 5 miles to a four corner junction. Turn left at the four corner junction onto National Forest System road 33-053 and continue for a mile to the campground. Upon entering the campground, the group unit is the first site on the left beside the Guard House.
1 West Winesap, Tonasket, WA 98855
AmphitheaterBerry PickingBikingBirdingCampingCanoeingFishingHikingHuntingKayakingSwimmingWildlife Viewing
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-234310 · facility + sites
Photo gallery
Roll CS-234310 · Lost Lake Group Unit · Tonasket WA6 frames · facility + sites
FAQ
How do I get a reservation at Lost Lake Group Unit?
Reservations for Lost Lake Group Unit are made through Recreation.gov. The current snapshot shows substantial availability: 26 of 29 tracked site-nights are open (89.7%), though availability can change. Campsite Sniper has also detected 7 site openings here in the last 90 days, so further dates may appear. 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 10:18 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.
How often do new openings appear at Lost Lake Group Unit?
Campsite Sniper detected 7 site-date openings here over the last 90 days, none in the last 7. A free alert watches around the clock and pings you the moment one appears.
Can I get a multi-night stay at Lost Lake Group Unit?
1 three-night opening is showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 21 at site 01. Confirm and book on Recreation.gov.
Which sites at Lost Lake Group Unit 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 45 ft.
Which month has the most availability at Lost Lake Group Unit?
October 2026, with 16 open site-nights in the current snapshot of 16.
When is the next open date at Lost Lake Group Unit?
As of the Sep 18, 2026 snapshot: the next open date is Mon, Sep 21 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.
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