The San Gabriel Valley is defined here by the convergence of the Rio Hondo and San Gabriel River, creating a complex landscape of water management and suburban density. This survey captures a highly developed corridor anchored by El Monte and Rosemead, where the natural flow of mountain runoff is channeled through several major washes, including Rubio Wash, Eaton Wash, and Santa Anita Wash. The significant Whittier Narrows Reservoir and its surrounding flood control lands dominate the southern portion of the sheet, providing a buffer between the residential neighborhoods and the industrial sectors near Pico Rivera.
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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
1894 · Pomona
USGS Topo · 1:62,500
1896 · Pasadena
USGS Topo · 1:62,500
1896 · Anaheim
USGS Topo · 1:62,500
1896 · Downey
USGS Topo · 1:62,500
1897 · Pomona
USGS Topo · 1:62,500
1898 · Pomona
USGS Topo · 1:62,500
1898 · Anaheim
USGS Topo · 1:62,500
1899 · Downey
USGS Topo · 1:62,500
1900 · Pasadena
USGS Topo · 1:62,500