canyon
cave
china
cliff
color image
confined space
curve
danger
day
direction
dual carriage ways
east asia
extreme terrain
hairpin curve
henan province
hill
horizontal
landscape
local landmark
low angle view
mountain
mountain peak
mountain range
mountain road
narrow
nature
nobody
outdoors
remote
road
rock face
rock formation
rock strata
rolling landscape
scenics
steep
taihang mountain
traffic
transportation
travel destinations