Geologic map of the Thompson Springs quadrangle, Grand County, Utah (M-239) Recreation Books and Sequoia National Park

and Sequoia National Park

you will discover that each turn of the page reveals two views of the same area

panoramic overlooks

The elevation of any point on the map can be estimated by referring to the elevations of the contour lines above and below it

Includes "fast facts" and "did you know" questions and insights

Geologic map of the Thompson Springs quadrangle, Grand County, Utah (M-239) Recreation Books and Sequoia National ParkBy: H. H. Doelling and P. Kuehne The Thompson Springs quadrangle is located in east central Utah along the Interstate 70 (I 70) corridor. The geology is dominated by the Upper Cretaceous Mancos Shale, which was deposited in the Western Interior Seaway. Exposed strata range in age from Late Jurassic to Late Cretaceous and include (in ascending order) the Brushy Basin Member of the Morrison Formation, Cedar Mountain Formation (Yellow Cat, Poison Strip