
Whale Peak serves as the prominent high point in this landscape of high desert ridges and deep drainage systems within the Vallecito Mountains. The complex network of canyons, including Bighorn Canyon, Mine Canyon, and Smuggler Canyon, illustrates the arid erosion patterns characteristic of San Diego County's inland desert reaches. Human presence in this environment is marked by the Pictograph Trl, which winds through the southern terrain toward Little Blair Valley, suggesting a history of movement through these difficult corridors.
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This is the sole edition of this map. No revisions or reprints were ever made.
1931 · Vallecito
USGS Topo · 1:125,000
1931 · Carrizo
USGS Topo · 1:125,000
1939 · Borrego
USGS Topo · 1:62,500
1942 · Barrel Spring
USGS Topo · 1:62,500
1942 · Borego
USGS Topo · 1:62,500
1942 · Carrizo Mtn
USGS Topo · 1:62,500
1942 · Cuyapaipe
USGS Topo · 1:62,500
1943 · Vallecito
USGS Topo · 1:125,000
1947 · Santa Ana
USGS Topo · 1:250,000
1947 · Barrel Spring
USGS Topo · 1:62,500