architecture
california
canyon
concrete
construction
dam
energy
engineering
flow
gate
grand
hetch
hetchy
hydroelectric
industrial
industry
lake
large
national
nature
oshaughnessy
outdoors
overflow
park
power
reservoir
river
rock
spray
stone
structure
supply
technology
tuolumne
usa
valley
wall
water
white
wilderness
yosemite
定額
Top view dam of Hetch Hetchy Reservoir with the forest valley and mountains in Yosemite National Park, California, providing the water and electricity in San Franciscoの素材 [FY31088150787]
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