National Park Service · Utah

Split Mountain Group Campground

National Park Service · Utah, United States · in Dinosaur National Monument

Open on the map Drive there Reserve Official page Directions
Sites
5
Hookups
4 no hookups
Season
Year-round
Group sites
Yes
Drinking water
Yes
Restrooms
Yes
Showers
No
Dump station
No
Laundry
No
Pets
Yes
Elevation
4,836 ft
Dark sky
Bortle class 1 · certified dark-sky place
Cell coverage
T-Mobile weak · AT&T good · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Lake
Dinosaur National Monument
Nearest town
Jensen
Address
PO Box 128, Jensen, UT, 84035
Phone
435-781-7700
Activities
Biking, Boating, Camping, Fishing, Hiking, Historic & Cultural Site, Visitor Center, Wildlife Viewing

4 numbered sites are mapped one by one - open the site map to pick yours.

About

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 Quarry Exhibit Hall, where you can see 149 million year old dinosaur bones still encased in the rock. Adjacent to the campground is the Split Mountain Boat Ramp where river rafters come off the Green River after trips through Dinosaur National Monument's canyons.

Recreation

Dinosaur National Monument covers over 210,000 acres (84984 ha).

Visitor Centers. The monument features two visitor centers - one in Colorado and one in Utah.

Quarry Exhibit Hall. You can see over 1,500 dinosaur fossils still in the rock inside the Quarry Exhibit Hall (Jensen, Utah).

History & Culture. Numerous cultural sites reveal stories of the people who lived here before and include Fremont petroglyphs, homestead cabins and former ranches. Hiking trails allow in-depth exploration.

Hiking . There are miles of trails for hiking and cross-country travel.

River Rafting & Boating. Whitewater rafting, both commercial and private, are is popular on the Green and Yampa Rivers. The Yampa River multi-day rafting trips begin at Deerlodge Park. The Yampa rushes downstream 44-miles (71 km) to join the Green River at Echo Park. Boaters continue downstream on the Green River to the take-out at the Split Mountain boat ramp. The Yampa is the largest free-flowing tributary within the Colorado River system. As such, it has a shorter season marked by fluctuations in water level resulting from snow received in the winter. It is characterized by famous rapids such as Teepee, Big Joe and Warm Springs. Raft trips must be arranged in advance. For more information, visit Dinosaur's Commercial Guided River Trips page. Private River Trips require a permit.

Scenic Drives. Several roads provide access to key destinations and scenic sites. Scenic drives allow the windshield visitor to see spectacular geology.

Facilities

The campground offers four group sites that accommodate both tents and recreational vehicles. Each campsite has a picnic table, campfire ring with grill and can accommodate up to 25 people and six vehicles. Drinking water and flush toilets are available from early April to early October. However, no water, sewer or electric hookups are available for recreational vehicles. RVs can not fill their potable water tanks at the campground.

Natural Features

The campground is set on a bench along the Green River and is dotted by Fremont Cottonwood and sagebrush. Campsites offer views of Split Mountain. Limited shade is provided by the few trees in the campground.

Nearby Attractions

In addition to the monument, nearby Utah State Parks, the Ashley National Forest, Flaming Gorge National Recreational Area and Bureau of Land Management sites provide additional recreational opportunities in the area.

Charges & Cancellations

No-Shows. A camping no-show customer is one who does not arrive at a campground and does not cancel the reservation by check-out time on the day after the scheduled arrival date. Reserved campsites will be held until check-out time on the day following your scheduled arrival.

If a customer does not arrive at the campground by check-out time the day after arrival or does not cancel the reservation by the times listed under "Late Cancellations" above, the customer may be assessed a $20.00 service fee and forfeit use fees.

Refunds

Customers must request refunds no later than 14 days after the scheduled departure date. Recreation.gov will not grant refund requests after 14 days of departure.

Refunds for Bankcard Purchases: Refunds for bank card payments will be issued as a credit to the original bank card.

Refunds for Emergency Closures: In the event of an emergency closure, the Recreation.gov team will attempt to notify users and offer alternate dates (as appropriate). If this is not possible, reservations will be cancelled and all fees paid will be refunded. Reservation fees for free tickets are non-refundable in the event of an emergency closure.

Fees

Winter Walk in Season is approximately from early October through mid-April.

The exact dates are determined by local weather conditions.

When weather conditions cause the water system to be shutdown, the Winter Walk In rate of $12.00 per night applies.

If the water is on, no matter what time of year it is, the nightly rate is $40.00.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January31°15°-11°48°11 of 11
February37°20°-6°55°11 of 11
March48°29°4°78°11 of 11
April63°34°21°78°8 of 11
May75°47°28°87°1 of 11
June89°59°44°102°0 of 11
July96°66°52°103°0 of 11
August91°63°55°100°0 of 11
September82°57°35°92°0 of 11
October63°40°20°78°3 of 10
November52°32°14°63°8 of 10
December34°18°-9°50°10 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Nearby campgrounds

All public campgrounds in Utah · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.