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1959 Map of Harper Canyon

Name: 1959 Topographic Map of Harper Canyon
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

The Vallecito Mountains dominate this arid landscape within Anza-Borrego Desert State Park, where complex drainage patterns are defined by numerous washes. Water sources are scarce in this 1950s survey, marked by the Dave McCain Spring (Dry) and seasonal channels like Fish Creek Wash and North Fork Fish Creek Wash. The terrain transitions from the high elevations of the mountains down to the Harper Flat and Hapaha Flat plateaus.

Transportation through the desert is limited to the Old Kane Spring Road and various unnamed Jeep Trails, highlighting the isolation of the Elephant Tree Area. Geologic interest is found at the Mud Palisades near the southern boundary, while the northeastern corner opens into the Lower Borrego Valley. This map records a landscape largely shaped by dry watercourses like Oyster Shell Wash and Lycium Wash, reflecting the harsh environment of eastern San Diego County.