Dinosaur National Monument is located in northwestern Colorado and northeastern Utah in an area of rugged canyons along the Green and Yampa Rivers. The monument’s boundaries also include numerous minor canyons, mountain parks, and basins.
The significance of historic resources within Dinosaur National Monument is based on their relationship to the themes of Ranching, Exploration and the Fur Trade, Tourism, Scientific Discovery, and Park Development. (Cover documentation ccepted by National Register in 1986.)
The complex is representative of a family operated ranch as it developed over more than fifty years and two generations. The family operated the ranch from 1902 through the early 1970s when it was purchased by the National Park Service.
The initials "DJ" and the year 1838 are inscribed on a canyon wall. Denis Julien had a long career as a trapper and mountain man and left similar inscriptions in Utah, some of which are now hidden by reservoirs.
Moved to the site in 1933, the cabin is associated with the development of tourism in the area. The two-room log cabin rests on a concrete slab and has a front gabled roof with exposed purlins. Listed under Dinosaur National Monument Multiple Resource Area.