2015 Map of Sage Creek Basin

About this map

Ashley National Forest encompasses much of this high-desert terrain, where the waters of the Flaming Gorge Reservoir fill the depths of Firehole Canyon. The landscape is defined by stark geologic formations and drainage systems like Greasewood Draw and Sage Creek Basin, which collect runoff from the surrounding ridges. Navigation through this part of Sweetwater County is marked by specific landmarks such as North Chimney Rock and South Chimney Rock, which serve as prominent vertical sentinels overlooking the reservoir. The interior remains relatively open, crossed by early routes such as Flaming Gorge Rd and CR-33. A rare water source, Greasewood Spring, appears in the southern portion of the quadrangle, illustrating the critical importance of localized springs in an otherwise arid environment. This 2015 survey provides a modern look at the intersection of protected federal lands and the massive reservoir infrastructure.