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2020 Map of East Promontory

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

USGS Topo · Published 2020

About this map

East Promontory defines the eastern shoreline of a narrow peninsula reaching into the Great Salt Lake within Box Elder County. The landscape is dominated by the steep, rising ridges of the Promontory Mountains, which are dissected by numerous drainage features including Messix Canyon, Chokecherry Canyon, and Broadmouth Canyon. This survey illustrates a desert environment where water sources are critical landmarks, shown by the distribution of isolated points like Sweetwater Spring, Wild Horse Spring, and Willow Springs along the mountain flanks.

The southeastern portion of the quadrangle opens into Bear River Bay, where the rugged terrain of Boothe Valley Hill meets the water at Black Rocky Point. Human infrastructure is limited to S East Promontory Rd, which skirts the transition between the high peaks and the lake bed. This document serves as a detailed study of the topographic interface between high desert ranges and the saltwater marshlands of D W R West Bay.