Trillium Lake cancellation alerts.
The classic postcard view of Mount Hood reflected in the lake, a short drive from Government Camp. One of the most photographed campgrounds in Oregon, which keeps it in demand all summer.
Which nights do you want at Trillium Lake?
We check live and answer straight away. If they're taken, the same dates carry into the alert form below.
We check Trillium Lake availability live when you subscribe — no stale numbers on this page.
Trillium Lake books through recreation.gov. Cancellations happen every day; your Scout's first email tells you exactly where things stand for your dates.
0 cancellations opened 27 nights here
- cancellations we saw
- 0
- gone within an hour
- 0%
- gone within a day
- 5%
- Fri/Sat nights
- 30%
Over the last 30 days, our checks saw 0 cancellations open up at Trillium Lake (fewer than one a week), covering 27 nights, plus 2 larger releases of a week or more. Of the 21 nights we saw open and then close again, 0% were gone within an hour of us spotting them, 0% within six hours and 5% within a day. 30% of the nights that opened were Friday or Saturday nights.
These are counts of what our own checks saw (about every 15 minutes); an opening that appeared and was taken between two checks is not in them, so treat every figure as a floor.
Your dates aren't available? Get a free email when one opens ↓
Email me when a site opens at Trillium Lake
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 9659 min). That window is what an instant email wins you.
Open this Scout in the builderCheck recreation.gov yourself →
Recent openings we caught at Trillium Lake
| Detected (local) | Date affected | Resolution |
|---|---|---|
| Tue, Oct 20 | gone by next check (within 9659 min) | |
| Wed, Oct 21 | gone by next check (within 11086 min) | |
| Thu, Oct 22 | gone by next check (within 12526 min) | |
| Fri, Oct 23 | gone by next check (within 13984 min) | |
| Sat, Oct 24 | gone by next check (within 15431 min) | |
| Sun, Oct 25 | gone by next check (within 16840 min) | |
| Mon, Oct 26 | still open at our last check | |
| Tue, Oct 27 | still open at our last check | |
| Wed, Oct 28 | still open at our last check | |
| Thu, Oct 29 | still open at our last check | |
| Fri, Oct 30 | still open at our last check | |
| Sat, Oct 31 | still open at our last check | |
| Mon, Oct 5 | gone by next check (within 515 min) | |
| Tue, Oct 6 | gone by next check (within 1861 min) | |
| Wed, Oct 7 | gone by next check (within 3288 min) | |
| Thu, Oct 8 | gone by next check (within 4767 min) | |
| Fri, Oct 9 | gone by next check (within 6191 min) | |
| Sat, Oct 10 | gone by next check (within 7626 min) | |
| Sun, Oct 11 | gone by next check (within 9087 min) | |
| Mon, Oct 12 | gone by next check (within 10526 min) |
Watching since Sep 8, 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
How often do sites open up at Trillium Lake?
Over the last 30 days, our checks saw 0 cancellations open up at Trillium Lake (fewer than one a week), covering 27 nights, plus 2 larger releases of a week or more. Of the 21 nights we saw open and then close again, 0% were gone within an hour of us spotting them, 0% within six hours and 5% within a day. These are counts of what our own checks saw (about every 15 minutes); an opening that appeared and was taken between two checks is not in them, so treat every figure as a floor.
When do cancellations show up at Trillium Lake?
30% of the nights that opened were Friday or Saturday nights.
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-hood/trillium-lake.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 Trillium Lake opens up:
POST https://campsitecancellations.com/scouts/subscribe
Content-Type: application/json
Accept: application/json
{"targetSlug":"mount-hood/trillium-lake","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
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