Campground · MT
WINDOW ROCK CABIN
MT · Custer Gallatin National Forest
Booking is hardest here in July (9/10) and easiest in May (6/10). Pick a month below for the full breakdown.
Season at a glance
Booking difficulty by month
Midweek tip: in the busiest month (July), arrivals are lightest on Thursday — shift your dates to improve your odds.
Booking window
When reservations open
Booking window
Reservations open on a rolling 6-month window at 7:00 AM America/New York.
For example, sites for January 15, 2027 become bookable on July 15, 2026. Set a reminder a few minutes before release for the best shot.
Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.
Facilities
Sites & amenities
Activities: WINTER SPORTS, HUNTING, HORSEBACK RIDING, HIKING, FISHING, CAMPING, BIKING, WILDLIFE VIEWING
Location