1958 Map of Essex Mountain

About this map

The Emigrant Trail cuts through the northern corner of this landscape, a vital historical corridor preserved here alongside the modern Jack Morrow Road. This high desert terrain is defined by the sharp escarpment of Steamboat Rim and the volcanic prominence of Essex Mountain, which rises above a series of arid washes and canyons. The distribution of life in this dry environment is evidenced by remote outposts like the Middle Hay Ranch and a sparse network of water sources, including Oz Yoke Springs, Marine Spring, and Indian Spring. To the south, an expansive field of Sand Dunes shifts against the fixed geology of Packsaddle Hills. The map captures a moment when traditional overland routes and cattle ranching infrastructure intersected with early petroleum exploration, as seen near the Oil Well located east of Indian Gap.