2019 Map of Twelvemile Mesa

About this map

The confluence of the Little Snake River and the Yampa River defines this western Colorado landscape, where the waters meet near the historic settlement area of Lily Park. This high-desert region is dominated by significant elevation changes, from the deep incisions of Cross Mountain Canyon to the broad plateau of Twelvemile Mesa. The northern reaches of Dinosaur National Monument extend into this territory, accessible via the Dinosaur Park Svc Rd, reflecting the area's protected status and geologic importance. Numerous drainages such as Sawmill Canyon, Horse Gulch, and Buffalo Gulch carve through the terrain, illustrating the complex watershed that feeds into the river systems. The presence of Cross Mtn in the northeast provides a prominent landmark for navigating this portion of Moffat County, which remains characterized by its sparse development and significant public land holdings.