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2020 Map of Flattop Mountain

Name: 2020 Topographic Map of Flattop Mountain
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Dinosaur Quarry & Flat Top defines the northwest corner of this high-elevation landscape in Emery County. The terrain is characterized by a complex network of canyons and washes, with the Price River cutting through the northeast, creating deep incisions like Sulphur Canyon and Stove Gulch. Dominant landmarks such as Flattop Mtn and Cedar Mtn provide significant vertical relief, while flat-topped features like Huff Bench and Humbug Flats suggest a plateau structure dissected by erosion.

Surface water is scarce, appearing primarily as isolated points like Lucky Flats Spring and Dripping Spring. These water sources, along with drainage systems like Cottonwood Wash and Neversweat Wash, were historically vital for local range management and transit. The map illustrates a largely uninhabited area where the names of geographical gates, such as The Door, and high ridges like Long Point Ridge served as essential navigation markers for those traversing this portion of the San Rafael Swell region.