The San Gabriel Mountains and the northern reaches of the San Fernando Valley meet on this 2015 survey, illustrating a landscape defined by water management and dense suburban expansion. The critical infrastructure of the Los Angeles Aqueduct and the Van Norman Bypass Reservoir system sits adjacent to established neighborhoods like Sylmar and Mission Hills. This interface between the steep, canyon-cut terrain of the Angeles National Forest and the valley floor is further managed by a series of debris basins, such as the Wilson Debris Basin and Yarnell Debris Basin, designed to protect the residential grid from mountain runoff.
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This is the sole edition of this map. No revisions or reprints were ever made.
1894 · Los Angeles
USGS Topo · 1:62,500
1896 · Santa Monica
USGS Topo · 1:62,500
1898 · Santa Monica
USGS Topo · 1:62,500
1900 · Los Angeles
USGS Topo · 1:62,500
1900 · Fernando
USGS Topo · 1:62,500
1901 · Southern California Sheet No. 1
USGS Topo · 1:250,000
1902 · Santa Monica
USGS Topo · 1:62,500
1903 · Calabasas
USGS Topo · 1:62,500
1903 · Camulos
USGS Topo · 1:125,000
1903 · Santa Susana
USGS Topo · 1:62,500