Answer: canyons

AnswerCrossword Clue
CANYONS

Gorges

CANYONS

Zion National Park sights

CANYONS

Things carved into the crust

CANYONS
Plateau separators
CANYONS
Echo spots
CANYONSWhere echoes echo
CANYONSSpaces between peaks
CANYONSColorado River scenes.
CANYONSBryce and Grand.
CANYONSBryce, Kings, Walnut, etc.
CANYONSBadlands features
CANYONSWestern backdrops
CANYONSEcho locations