Campground · MT
Downstream (MT)
Booking is hardest here in June (4/10) and easiest in May (3/10). Pick a month below for the full breakdown.
Booking difficulty by month
Midweek tip: in the busiest month (June), arrivals are lightest on Tuesday — shift your dates to improve your odds.
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.
Sites & amenities
- 72 electric sites
- 1 water hookups
- 1 sewer hookups
- 12 tent-only sites
- 93 RV sites
- 25 accessible sites
- Max RV length 90 ft
Activities: DAY USE AREA, HIKING, FISHING, CAMPING, HISTORIC & CULTURAL SITE, BIKING, BOATING, BIRDING, AMPHITHEATER, ENVIRONMENTAL EDUCATION, FISH HATCHERY, OBSERVATION SITE, PHOTOGRAPHY, RECREATIONAL SHOOTING, STAR GAZING, VISITOR CENTER, DISC GOLF, WATER ACTIVITIES