america
arch
arizona
background
black and white
blue
bridge
building
colorado
colorado river
concrete
construction
curve
dam
deep
electricity
energy
glen
glen canyon
glen canyon dam
hydroelectric
infrastructure buildings
lake
landmark
landscape
mead
modern
national
natural
orange
outdoor
page
park
power
power plant
river
road
scenic
skirt
sky
steel
united states
water
world
yellow