Hiking on the shoreline of Hetch Hetchy reservoir in Yosemite National Park, Sierra Nevada mountains, California; the reservoir is one of the main sources of drinking water for the San Francisco bay 2000pc Puzzle

Hiking on the shoreline of Hetch Hetchy reservoir in Yosemite National Park, Sierra Nevada mountains, California; the reservoir is one of the main sources of drinking water for the San Francisco bay 2000pc Puzzle