7 in HIGH x 20.5 in WIDE
(17.78 cm HIGH x 52.07 cm WIDE)
The Oakland Tribune Collection, the Oakland Museum of California. Gift of ANG Newspapers.

Map, "Hetch Hetcy Water Supply of the City and County of San Francisco, Plans for San Joaquin Pipeline, M. M. O'Shaughnessy, City Engineer, January 1931" showing the water pipeline route from approximately the Moccasin Power plant through the Foothill and San Joaquin tunnels, through the Coast Range tunnels and on to the crossing of San Francisco Bay. Graphs show the elevations of the hills and mountains under which the pipeline tunnel passes.

From an envelope marked "San Francisco, Calif. Water Map"

Used: Oakland Tribune

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