The Governor Edmund G Brown Coastal Br California Aqueduct cuts a modern engineered line across the southern portion of this landscape, contrasting with the ancient drainage patterns of the Central Coast Ranges. The area is defined by a series of significant canyons including Dry Canyon, Wood Canyon, Shedd Canyon, and Upton Canyon, which funnel seasonal runoff toward Indian Cr and Quail Water Cr. While the terrain remains largely rural, a network of residential roads like Amber Hills Way, Sunburst Rd, and Squirrel Pl shows the localized expansion of contemporary homesteads and rural development into the hills. Traditional transit routes such as Creston Valley Rd and Carrizo Plains Rd connect this rugged interior to the broader San Luis Obispo County region, tracing the natural contours of the land established by generations of travel.
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This is the sole edition of this map. No revisions or reprints were ever made.
1897 · San Luis Obispo
USGS Topo · 1:62,500
1900 · San Luis
USGS Topo · 1:125,000
1914 · Cholame
USGS Topo · 1:125,000
1915 · Cholame
USGS Topo · 1:125,000
1917 · Cholame
USGS Topo · 1:125,000
1919 · Paso Robles
USGS Topo · 1:62,500
1922 · Pozo
USGS Topo · 1:62,500
1942 · San Luis Obispo
USGS Topo · 1:62,500
1943 · Shandon
USGS Topo · 1:31,680
1943 · Paso Robles
USGS Topo · 1:62,500