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1970 Map of Twentymile Hill

Name: 1970 Topographic Map of Twentymile Hill
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Chevlon Canyon dominates the southern reaches of this landscape, its steep walls and winding floor carving through the high desert. The area is defined by a reliance on water management for ranching and transit, evidenced by a network of catchments such as Cement Tank, Sixteenmile Tank, and Twin Tanks. Near the high point of Twentymile Hill, a scattered system of Jeep Trails provides the primary means of navigating the terrain between the Coconino and Navajo County line.

Evidence of earlier habitation or utility is noted by the presence of Ruins and a Corral near the canyon floor, situated close to the Bumping Station. The map also details several industrial excavations marked as Borrow Pit, while natural geological features like the Crack suggest the underlying tectonic character of the region. The map captures a moment in the late 20th century before significant modern development, focusing on the utility of the land for cattle and local transit.