Wind and water erosion have created steep-walled canyons, and sculpted windows and bridges out of the sandstone landscape.
The Wilderness Area includes narrow steep-walled canyons winding and creating a natural maze within the badlands.
The epicental region is characterized by steep-walled narrow canyons and valleys.
North of Wauneta is an area of significant loess deposits, including the typical steep-walled canyons.
The suspension design was chosen to address the steep-walled canyon at the crossing, which required a single span with no temporary falsework.
As the terrain around them gradually changed, becoming rocky and more rugged with ravines and steep-walled canyons, Ayla felt a growing sense of excitement.
Emmet set up camp on the far side of the shallow, steep-walled canyon, not wanting to be too close.
They continued, came out in a steep-walled canyon, and forded the stream for the third time.
Perennial streams erode the steep-walled canyons and support large fan palm oases.
Nasty place for an ambush, thought Lieutenant King, as the troops entered a narrow, steep-walled canyon.
