A monolith is a geological feature such as a mountain, consisting of a single massive stone or rock, or a single piece of rock placed as, or within, a monument. Erosion usually exposes the geological formations, which are most often made of very hard and solid metamorphic or sedimentary rock.The word derives from the Latin word monolithus from the Greek word ????????? (monolithos), derived from ????? ("one" or "single") and ????? ("stone").300px|right|thumb| Augustus is often claimed to be the largest monolith on Earth]
Geological monoliths
The three largest on Earth are:
Mount Augustus, in Western Australia - 860m
La Peña de Bernal, in Mexico
Stone Mountain, in Stone Mountain Park, Stone Mountain, a suburb of Atlanta, Georgia, USA
Others include:
North America
Beacon Rock, Columbia River Gorge, Washington, United States
Bottleneck Peak and Moon, Sids Mountain, Utah, United States
Devils Tower National Monument, Wyoming, United States
El Capitan, Yosemite National Pa
Source:
http://en.wikipedia.org/wiki/Monolith