Rock fissure (4)
I believe the answer is:
crag
(Other definitions for crag that I've seen before include "Steep, rugged peak" , "Steep or rugged cliff face" , "Rough, steep rock face" , "Steep rugged rock or cliff" , "Steep rock, peak" .)
I believe the answer is:
crag
(Other definitions for crag that I've seen before include "Steep, rugged peak" , "Steep or rugged cliff face" , "Rough, steep rock face" , "Steep rugged rock or cliff" , "Steep rock, peak" .)