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.)
Which nights do you want at Cougar Rock?
We check live and answer straight away. If they're taken, the same dates carry into the alert form below.
0 open nights in October 2026 — fully booked.
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 7full | 8full | 9full | 10full | |||
| 11full | 12full | 13full | 14full | 15full | 16full | 17full |
| 18full | 19full | 20full | 21full | 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 ↓
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 (≤348 min later). 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 (≤348 min later) | |
| Sat, Sep 12 | gone by next check (≤104 min later) | |
| Fri, Sep 11 | gone by next check (≤778 min later) | |
| Sat, Sep 12 | gone by next check (≤1066 min later) | |
| Fri, Sep 11 | gone by next check (≤46 min later) | |
| Sat, Sep 12 | gone by next check (≤74 min later) | |
| Sat, Sep 12 | gone by next check (≤212 min later) | |
| Sat, Sep 12 | gone by next check (≤166 min later) | |
| Fri, Sep 11 | gone by next check (≤58 min later) | |
| Fri, Sep 11 | gone by next check (≤58 min later) | |
| Sat, Sep 12 | gone by next check (≤674 min later) | |
| Sat, Sep 12 | gone by next check (≤17 min later) | |
| Fri, Sep 11 | gone by next check (≤34 min later) | |
| Sat, Sep 12 | gone by next check (≤1696 min later) | |
| Fri, Sep 11 | gone by next check (≤1814 min later) | |
| Tue, Sep 8 | gone by next check (≤559 min later) | |
| Tue, Sep 8 | gone by next check (≤31 min later) | |
| Fri, Sep 11 | gone by next check (≤1145 min later) | |
| Fri, Sep 11 | gone by next check (≤61 min later) | |
| Thu, Sep 10 | gone by next check (≤3234 min later) |
Watching since Jul 27, 2026, checking about every 15 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
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
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