Serpent Mound crater
Videos
Serpent Mound crater, also known as the Serpent Mound Disturbance, is an eroded meteorite impact crater in Ohio, United States. It lies largely in Adams County, with the northern part mostly in Highla
Air photo showing the perimeter of Serpent Mound crater, in 1974
Oblique air photo of central Serpent Mound crater
Pingualuit aerial 2007
Effigy mound
Videos
An effigy mound is a raised pile of earth built in the shape of a stylized animal, symbol, religious figure, human, or other figure. The Effigy Moundbuilder culture is primarily associated with the ye
Serpent Mound crater
…or younger). However, a 2010 paper suggested that the maximum rim diameter is 14 kilometres (8.7 mi). The crater is named after the Serpent Mound, an effigy mound, located on a plateau in Brush Creek Valley within the crater. European-American explorers had already noted the unusual terrain in the 19th century…
Great Serpent Mound, Ohio, constructed ca. 200 BCE
One of many eagle-shaped mounds in Wisconsin, an effigy with a wingspan of 624 feet (190 m)