Find your spot

Find other facilities on map

Find Permits

Attention: Dinosaur National Monument’s Yampa and Gates of Lodore, Green River Lottery 2015 is now closed.

Permits are always required to float the Green or Yampa Rivers. They are issued through the River Office in Dinosaur National Monument.

Low-Use Season permits and cancellations for the 2015 season will become available beginning March 2, 2015 by calling the Dinosaur National Monument River Office at 970-374-2468 Monday-Friday, 8 a.m. to 12 p.m. (Mountain Time).

Dinosaur National Monument - Green and Yampa River Lottery, CO

part ofDinosaur National Monument, National Park Service
Approaching Tiger Wall, Yampa River, Dinosaur National Monument


Welcome to the river permit lottery application site for Dinosaur National Monument-home to the Green and Yampa Rivers, two of the west's premier whitewater rivers.

Green River: Gates of Lodore

The Green River flows south out of Browns Park into Dinosaur National Monument and cuts through the Uinta Mountains, the largest east-west extending mountain range in the lower 48 states. Within the monument and along this stretch of the Green River lies the imposing Canyon of Lodore, which received its name from John Wesley Powell’s expedition in 1869. Three of the rapids so impressed Powell that he named them Disaster Falls, Triplet Falls and Hell’s Half Mile.

The 19-mile run down the Green River from the Gates of Lodore to Echo Park is different today than in Powell’s time, largely because of the dam at Flaming Gorge which regulates the flow. This allows for a longer rafting season, but one that is not much affected by spring run-off. However, there are many named and unnamed rapids, well-spaced as in most pool-drop rivers and plenty of beautiful river side campsites and hikes, dominated by the almost 2,000 feet high red cliffs.

Yampa River

The Yampa River begins at Deerlodge Park and rushes downstream 44-miles 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 such famous rapids as Teepee, Big Joe and Warm Springs.

Below the Confluence of the Yampa and the Green River

All trips continue downstream on the Green River from Echo Park through the 17-miles that is Whirlpool Canyon. It was named by Powell because of the squirrelly and unpredictable water the explorers experienced here.

The last section of the Green River is the nine miles of Split Mountain Canyon beginning at the Rainbow Park boat ramp flowing swiftly downstream, punctuated by four named rapids and assorted riffles before reaching the take-out at the Split Mountain boat ramp.

The river corridors within Dinosaur National Monument, with the exception of Echo Park, are proposed wilderness and consequently managed as such. This means you will not hear or see motors or vehicles anywhere along your trip with the possible exception of Echo Park where a dirt road comes down to the water’s edge.

Camping facilities exist at the Lodore and Deerlodge launch sites. Each has campsites, water available seasonally, an information station, staffed ranger station and vault toilets. These remote sites do not provide trash receptacles because of issues with bears.

The launch locations have been kept fairly primitive to help the visitor transition to the wilderness environment of the canyon. Due to the remoteness of the area and long drive times, many groups camp at their launch site the night before their river launch.

At the Split Mountain take-out, there are reservable group campsites (flush toilets seasonally, no showers) as well as vault toilets year-round and a seasonally operational groover dump site. Nearby is the world famous dinosaur quarry where you can see 149 million year old dinosaur bones encased in the rock.

Dinosaur National Monument: Green and Yampa Rivers Map

Know Before You Go
New this year, successful applicants will need to login to and confirm acceptance of the launch date and pay associated fees. Once this confirmation is completed, you will receive a confirmation letter with links to two forms, both of which need to be completed and returned to the Dinosaur National Monument River Office at least 30 days prior to your river launch date in order to obtain your permit which will arrive from the river office in Dinosaur National Monument.

Click here for the requirements and regulations for Dinosaur National Monument river trips.

Trips may be delayed or permits invalidated if conditions in these stipulations are not met. Failure to comply with stipulations or launching without a permit may result in penalties under Federal, Utah or Colorado law and/or regulations. Penalties may include criminal action, civil action, and denial of future permits.

When applying for or reserving a launch date on this river, I certify that:

  • Upon securing this reservation, I recognize that this permit is not transferable and that I will become the responsible person for this group;
  • I am not currently being penalized for a no-show or late cancellation on this river;
  • I will only submit one application for this river's lottery;
  • I understand that during the high use season for this river, I am limited to one permit and may only hold one launch reservation during this period.

Unless authorized as a commercial operator on this river, this reservation/application is for a (private) non-commercial float permit.

A non-commercial trip meets the following criteria: There is a bona fide sharing of cost where no part of the fees are:
  • collected in excess of actual costs of the trip;
  • for salary or financial gain in any manner for any of the group, its leaders or sponsors;
  • for capital increase of the major equipment or facilities used on the trip.

Boatmen and other crew may not be paid in ANY manner.

Any or all goods, activities, services, agreements, or anything offered to park visitors and /or the general public for recreational purposes, which uses park resources, is undertaken for or results in compensation, monetary gain, benefit, or profit to an individual, organization or corporation is considered a commercial enterprise.

There is no media or direct mail advertising or soliciting for trip participants.

Contact Information

Dinosaur National Monument
River Office
4545 Highway 40
Dinosaur, CO 81610
(970) 374-2468

Phone Park for More Information:

Information:  (970)374-2468
Discover and reserve camping, lodging, permits, tours and more at America's parks, forests, monuments and other public lands with Learn more about us, or about any of our agency partners below:
Bureau of Land Management Federal Highway Administration National Oceanic Atmosphere Administration Smithsonian Institution USDA Forest Service US Army Corps of Engineers US Fish and Wildlife Service National Park Service Bureau of Engraving and Printing Tennessee Valley Authority Bureau of Reclamation National Archives Records Administration