america
american west
anticline
canyon
cliff
cretaceous
crust
earth
environment
erosion
formation
geological
geology
high desert
highway
hill
i70
jagged
jurassic
land
landscape
layers
multicolored
natural
nature
north america
outdoor
outdoors
outside
red
rock
rugged
san rafael swell
sandstone
scenic
shale
sights
southwest
terrain
travel
triassic
usa
ut
utah
visit
west