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2012 Map of Otay Mountain

Name: 2012 Topographic Map of Otay Mountain
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

Otay Mountain and the San Ysidro Mountains dominate this borderland landscape, where the high ridges of the California-Baja California line meet a network of steep canyons and drainage basins. The map illustrates a complex topographical interface near the international boundary, characterized by the winding course of the Tijuana River and several significant tributaries including Dulzura Cr and Cottonwood Cr. Human presence is concentrated in small pockets like Doghouse Junction and along the roads that navigate the difficult terrain, such as Marron Valley Rd and Donahoe Spur Rd.

Genealogists and local historians will find the Dulzura Community Cemetery in the northeastern corner, providing a specific point of reference for families tied to this region. The terrain is marked by significant features like Mine Canyon and Donohoe Mountain, which frame the lower Marron Valley. This survey provides a precise record of the physical geography and road networks in this sensitive border area during the early 21st century.