
The San Gabriel Mountains north of Los Angeles are defined here by a series of high-altitude ranches and specialized institutions during the late 1930s. The landscape is marked by the presence of the Fairview Sanatorium and I.O.F. Sanatorium in the south, reflecting the era's reliance on mountain air for medical recovery. Deep in the canyons, family holdings like De Mille Ranch, Dillon Ranch, and Watts Ranch suggest a period of active high-country habitation before modern development altered the region's land use.
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3 editions found
1900 · Fernando
USGS Topo · 1:62,500
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1904 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1925 · Sylmar
USGS Topo · 1:24,000
1926 · Sunland
USGS Topo · 1:24,000
1927 · Pacoima
USGS Topo · 1:24,000
1928 · La Crescenta
USGS Topo · 1:24,000
1928 · Sylmar
USGS Topo · 1:24,000
1929 · Sylmar
USGS Topo · 1:24,000
1929 · Lang
USGS Topo · 1:24,000