Answer: screes

AnswerCrossword Clue
SCREESHeaps of rocky debris
SCREESHeaps of stones
SCREESRocky slopes
SCREESRock piles below mesas
SCREESRock piles below mesas, e.g.
SCREESStep masses of rock at the base of cliffs
screessteep mass of detritus on the side of a mountain
screesSCREE, a mass of rocks at the foot of a slope