Outcropping (noun)

1. A mass of rock that projects from a mountain or rock face.
2. A visible projection of rock from the surface of a soil or rock mass.

Origin:

Late 19th century: from out- + crop.

Examples:

1. There was a large outcropping of granite near the summit of the mountain.
2. She noticed an outcropping of sandstone that looked like a face.
3. Outcroppings of limestone dotted the hillsides.
4. The outcropping was the only source of shelter for miles around.
5. The cliff was dotted with outcroppings of dark rock.