1945 Map of San Andreas

Water management is vital to both mining and agriculture, evidenced by the Salt Spring Valley Reservoir and numerous flumes and gulches. Remote homesteads and family-named landmarks like Filippini Ranch, Zwinge Ranch, and McCarty Ranch are scattered across the terrain from Hogback Mountain to the flats of Salt Spring Valley. The map records a transition from the deep-shaft mining era toward a diversified rural economy of ranching and institutional land use, such as the Fricot Ranch School.