Shows routes for "present Los Angeles Aqueduct," "present Los Angeles power line," Metropolitan Aqueduct, under construction," "All American Canal." Also shows location of "Mono Basin Project, under construction," and "Owens River Project, future."
"Base map from U.S. Geological Survey state map. Base revised as to cities and towns on F.A.H.S. [Federal Aid Highway System] and county lines by Bureau of Public Roads, Feb. 1, 1929."