a crest of the mount bulgheria along the coast. mountain, mountaintop.

apennine apennines bedrock boulder bulgheria calcareous cave cavern cavernous clayey clays crack crag craggy crust crustal erode eroded erosion foliation formation geologic geological geology grotto hole hollow karstic layer limestone mineral mineralogy mountaineering plate rock rocks rocky sarsen sediment sedimentary slope stone stony tufa weathered weathering