Crags are formed when a glacier or ice sheet passes over
an area that contains
formation particular;
resilient resistant
rock, oft, granite volcanic plug
with some other volcanic stuff, it happening thus
the risen rocky block stands firm,
while soft surrounds are mowed down
by means of fierce glacial force of fearsome erosioning
thus, the rocky block protrudes from the surrounding terrain.
Frequently the crag serves as shelter which remains as like
a gradual fan or ridge forming a tapered ramp like bridge up the leeward side of crags (‘n stuff)
