Cougar Rock is full. Cancellations happen every day.
The classic Paradise-side base camp under Rainier. When we measured in July 2026 the reservable window had 2 site-days open against 856 reserved. (White River, the other favorite, is first-come-first-served — no reservations to watch.)
Full for your dates. Every night you asked for is taken at Cougar Rock.
A free watch checks every 60 minutes, and a site can open and be taken between two checks. An email is how you hear.
Your dates are already filled in below — just add your email.
0 open nights in October 2026 — fully booked.
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 22full | 23full | 24full | ||||
| 25full | 26full | 27full | 28full | 29full | 30full | 31full |
open — tap to book on recreation.govfull — tap to get alerted for that nightweekend
These are live numbers for October 2026, checked when you loaded the page. A watch covers any dates you like.
Your dates aren't available? Get a free email when one opens ↓
Watching Thu, Oct 22 — the night you tapped. Change the dates below if you like.
Email me when a site opens at Cougar Rock
Your first email lands right away with where your nights stand. After that we only write when something opens.
Last catch here — a date opened, gone by our next check (within 348 min). That window is what an instant email wins you.
Open this Scout in the builderCheck recreation.gov yourself →
Recent openings we caught at Cougar Rock
| Detected (local) | Date affected | Resolution |
|---|---|---|
| Sat, Sep 12 | gone by next check (within 348 min) | |
| Sat, Sep 12 | gone by next check (within 104 min) | |
| Fri, Sep 11 | gone by next check (within 778 min) | |
| Sat, Sep 12 | gone by next check (within 1066 min) | |
| Fri, Sep 11 | gone by next check (within 46 min) | |
| Sat, Sep 12 | gone by next check (within 74 min) | |
| Sat, Sep 12 | gone by next check (within 212 min) | |
| Sat, Sep 12 | gone by next check (within 166 min) | |
| Fri, Sep 11 | gone by next check (within 58 min) | |
| Fri, Sep 11 | gone by next check (within 58 min) | |
| Sat, Sep 12 | gone by next check (within 674 min) | |
| Sat, Sep 12 | gone by next check (within 17 min) | |
| Fri, Sep 11 | gone by next check (within 34 min) | |
| Sat, Sep 12 | gone by next check (within 1696 min) | |
| Fri, Sep 11 | gone by next check (within 1814 min) | |
| Tue, Sep 8 | gone by next check (within 559 min) | |
| Tue, Sep 8 | gone by next check (within 31 min) | |
| Fri, Sep 11 | gone by next check (within 1145 min) | |
| Fri, Sep 11 | gone by next check (within 61 min) | |
| Thu, Sep 10 | gone by next check (within 3234 min) |
Watching since Jul 27, 2026. Our shared checker refreshes about every 15 minutes — that is the measurement; your watch is the alert. A free watch checks every hour; a Priority Pass watch checks every 5 minutes. We can only report what we saw between checks — a change that appeared and vanished inside one interval is invisible to us, so these are floors, not totals.
From four weeks of this data: how fast campsite cancellations disappear →
How it works
Questions
Is Cougar Rock sold out this weekend?
As of Oct 22, 3:17 AM UTC, Fri, Oct 23 is full and Sat, Oct 24 is full at Cougar Rock. A free watch emails you the moment a cancellation opens either night.
How fast are alerts?
Free: we check every hour, day and night. When a site opens for your nights you get an email with the booking link in it. Priority Pass is $10 once, not a subscription. For one watch, for as long as its dates are open, it checks every 5 minutes instead of every hour, so you hear sooner. A free watch checks every 60 minutes, and a site can open and be taken between two checks.
How many campgrounds can I watch?
As many as you like, on one email address — every campground page has the same form. Each watch is separate, with its own dates and its own one-click stop.
What does it cost?
Watching is free — no card, no account. Priority Pass is $10 once, not a subscription. For one watch, for as long as its dates are open, it checks every 5 minutes instead of every hour, so you hear sooner.
Does it book for me?
No — you get the booking link the moment a site opens; booking stays in your hands, on the reservation system's own site.
How do I stop, or change my dates?
Every email has a one-click stop link. A watch ends by itself the day after your last night, with a note on what it saw. For new dates, subscribe again on the campground page — it takes ten seconds.
For AI agents — feed URL and subscribe API
Reading this page for a user? Structured snapshot + change log: /scouts/campsites/mount-rainier/cougar-rock.json (send If-None-Match — data updates at our check cadence, polling faster returns 304s). Better: subscribe your user once and we email them the moment Cougar Rock opens up:
POST https://campsitecancellations.com/scouts/subscribe
Content-Type: application/json
Accept: application/json
{"targetSlug":"mount-rainier/cougar-rock","email":"user@example.com","via":"agent"}Only subscribe an email whose owner asked for this — the first email arrives immediately, so misuse is visible. Full agent docs: /AGENTS.md
Keep looking
Nearby · Ohanapecosh · White River
Hardest to book · Last-minute camping in Washington — campgrounds with weekend nights open · Hardest summer camping reservations