Recreation.gov
When do reservations open at Slough Creek Campground, Yellowstone National Park?
- Booking window
- 14 days to 6 months ahead
- Releases
- Daily
Sites here open in two waves: 5 sites 14 days ahead, released daily, and the rest 6 months ahead, released daily at 7:00 AM PT.
For sites booked 6 months ahead, the next arrival date, Jun 15, 2027, opens on Dec 15, 2026. Sites with a shorter window are released only that close to arrival, at a time the provider does not publish, so they show no availability before then: that does not mean they are sold out.
Closed for 2026. Next year's Open Season: Jun 15 - Oct 11, 2027 · Last checked Oct 24, 2026
Popular weekends
- Opening weekend 2027 (Arrive Fri, Jun 18 · 2 nights)
- Sites booked 6 months ahead: Opens Dec 18, 2026, 7:00 AM PST
- Sites booked 14 days ahead: Opens Jun 4, 2027
Remind me - July 4th weekend 2027 (Arrive Fri, Jul 2 · 3 nights)
- Sites booked 6 months ahead: Opens Jan 2, 2027, 7:00 AM PST
- Sites booked 14 days ahead: Opens Jun 18, 2027
Remind me - Labor Day weekend 2027 (Arrive Fri, Sep 3 · 3 nights)
- Sites booked 6 months ahead: Opens Mar 3, 2027, 7:00 AM PST
- Sites booked 14 days ahead: Opens Aug 20, 2027
Remind me - Columbus Day / Indigenous Peoples' Day weekend 2027 (Arrive Fri, Oct 8 · 3 nights)
- Sites booked 6 months ahead: Opens Apr 8, 2027, 7:00 AM PDT
- Sites booked 14 days ahead: Opens Sep 24, 2027
Remind me
Different rules for different sites
- 5 sites: 14 days ahead
- All other sites: 6 months ahead
Month by month
| Arrivals Jun 15 to Jun 30, 2027 | opens Dec 15 to Dec 30, 2026, 6 months before each arrival date |
|---|
| Arrivals in July 2027 | opens Jan 1 to Jan 31, 2027, 6 months before each arrival date |
|---|
| Arrivals in August 2027 | opens Feb 1 to Mar 1, 2027, 6 months before each arrival date |
|---|
| Arrivals in September 2027 | opens Mar 1 to Mar 30, 2027, 6 months before each arrival date |
|---|
New to YonderMark?
- Free alerts for up to 3 campgrounds
- An email when a site opens up for your dates
Set a free alert
We don't book for you, and we're not affiliated with any agency.
Release rules come from the provider and can change. YonderMark rechecks them.