america
arizona
barrage
barrier
dam
electric station
electricity
electricity generation
energetics
energy
exteriors
hoover
hoover dam
hydroelectric energy
hydroelectric power plant
hydroelectric power plants
hydroelectricity
natural resource
north america
outdoors
outside
power
power plant
power production
power station
renewable energy
sign
southwest
southwestern
united states
united states of america
usa
water power plant
world locations