Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National ParkMartin Samuel Vilas

Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park

Name: Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park
Author: Martin Samuel Vilas

Martin Samuel Vilas · 2022

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Water-supply -- California -- San FranciscoHetch Hetchy Valley (Calif.)