Campground · UT
Upper Onion Creek Group Site
Upper Onion Creek Group Site is generally lottery-hard to book. Across the 5 months we have reservation data for, difficulty peaks in April (10/10) and eases to its lowest in June (9/10). 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 (April), arrivals are lightest on Wednesday — 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 April 15, 2027 become bookable on October 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
- 2 RV sites
- Max RV length 20 ft
Activities: CAMPING, MOUNTAIN BIKING, OFF ROAD VEHICLE TRAILS, STAR GAZING, HORSE CAMPING, OFF HIGHWAY VEHICLE
How much does it cost to camp at Upper Onion Creek Group Site?
Group Site A (Equestrian Site, max 20 people): $100. Group Site B (max 25 people): $125.
Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.