Los Padres National Forest covers much of this coastal range terrain, dominated by the peaks of Lopez Mtn and Mt Lowe. The landscape is defined by a series of steep canyons and ridges, including Sycamore Canyon and Piney Ridge, which feed into complex drainage systems like the Salinas River and Potrero Cr. A notable modern engineering feature, the Governor Edmund G Brown Coastal Br California Aqueduct, cuts through the southwestern section, illustrating the scale of water management in this part of San Luis Obispo County.
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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
1897 · Arroyo Grande
USGS Topo · 1:62,500
1900 · San Luis
USGS Topo · 1:125,000
1922 · Pozo
USGS Topo · 1:62,500
1922 · Nipomo
USGS Topo · 1:62,500
1942 · San Luis Obispo
USGS Topo · 1:62,500
1942 · Arroyo Grande
USGS Topo · 1:62,500
1947 · San Luis Obispo
USGS Topo · 1:250,000
1948 · San Luis Obispo
USGS Topo · 1:250,000
1952 · Arroyo Grande
USGS Topo · 1:62,500