Campground · MT
Downstream (MT)
Downstream (MT) is generally plan ahead to book. Across the 5 months we have reservation data for, difficulty peaks in June (5/10) and eases to its lowest in May (2/10). The heat strip below breaks down every month — pick one for its full odds, lead-time chart, and easier nearby alternatives.
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 February 15, 2027 become bookable on August 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