A lode; a limited mass of rock bearing valuable mineral.
A rock shelf which extends across the river at right angles to the current and acts as a natural barrier over which the water flows.
The exposed edge of a rock stratum that acts as a low natural dam or as a series of such dams.
A horizontal layer of rock.
Flat bit on a rock (can be miniature or gigantic).
A Projection of rock, ore, or granite that may be associated with a vein of non pourous elements not sutable for drainage.
a projecting ridge on a mountain or submerged under water
a bed of rock that is sticking out of the ground, or the side of a mountain
A flat area of rock. Can be very narrow or large enough to park a car on. Useful for belays and bivi's
An irregular wellbore caused by penetration of alternating layers of hard and soft formations where the soft formation has washed out and caused a change of diametrical size.
A projection, ridge, or shelf.
A horizontal layer, but often a vein or lode is referred to as a "ledge" of ore.