The erosion of material a t the site of seepage causes rock and debris on the slope above this area to collapse and slide downhill, creating the alcove.
(rock and debris on the slope above this area; to slide; downhill) (The erosion of material; causes; rock and debris on the slope above this area to collapse and slide downhill) Context(The erosion of material causes,List([0, 54))):(rock and debris on the slope above this area; to collapse; )
The erosion of material causes,List([0, 54))
rock and debris on the slope above this area The erosion of material rock and debris on the slope above this area
to slide causes to collapse
downhill
rock and debris on the slope above this area to collapse and slide downhill