Dinosaur National Monument · Utah
Overview The Split Mountain Group Campground is located along the banks of the Green River at an elevation of 4,800 feet. The highly eroded Split Mountain towers over the campground. The campground is near the Quarry Exhibit Hall, where you can see 149 million year old dinosaur bones still encased in the rock.
Sites at Split Mountain Group Campground are reserved through Recreation.gov. Sites here can be reserved in advance through the official system, and they are claimed fast — cancellations then trickle back all season, unannounced, at any hour of the day or night.
| Total sites | 5 |
|---|---|
| Site types | Group |
| Location | Jensen, UT |
| Book through | Recreation.gov |
| Official listing | Recreation.gov |
Because sites are booked months ahead, a steady share of reservations get cancelled as trips fall through. Each cancellation instantly returns that site and those nights to the official calendar — first-come, first-served, no waitlist, no announcement. Refreshing the booking page yourself, every few minutes for weeks, works in theory. In practice, the people who get these sites are the ones who hear about the opening first.
ItOpened scans the Recreation.gov calendar for Split Mountain Group Campground around the clock. When a site matching your dates and your vehicle opens, you get a text with a direct link to it. You book it yourself, in your own account, at the normal price. We never book, hold, or resell — your fee pays for monitoring, and openings are first-come, so speed is the whole game.
| Green River Campground | Cancellation alerts available |
|---|---|
| Echo Park Campground | Cancellation alerts available |
| Gates of Lodore Campground | Cancellation alerts available |
| Deerlodge Park Campground | Cancellation alerts available |
| Rainbow Park Campground | Cancellation alerts available |
Page data refreshed 2026-10-29. Site facts come from the official directory listing for Split Mountain Group Campground; cancellation statistics come from our own scanning logs.