Found 52 Cliff CC0 textures in library

Aerial Grass Rock
Aerial Rocks 01
Aerial Rocks 02
Aerial Rocks 04
Cliff 1
Coast Land Rocks 01
Coast Sand Rocks 02
Rock 003
Rock 006
Rock 007
Rock 008
Rock 009
Rock 010
Rock 011
Rock 012
Rock 013
Rock 014
Rock 015
Rock 016
Rock 017
Rock 018
Rock 019
Rock 022
Rock 023
Rock 024
Rock 025
Rock 026
Rock 027
Rock 028
Rock 029
Rock 030
Rock 031
Rock 032
Rock 033
Rock 034
Rock 035
Rock 036
Rock 037
Rock 038
Rock 039
Rock 044
Rock 045
Rock 049
Rock 050
Rock 06
Rock Boulder Cracked
Rocks 001
Rocks 002
Rocks 011
Rocks 016
Rocky Trail
Worn Rock Natural 01