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^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In 2008, a State Glacial Rock (Rolling Rock) was designated as well. [82]
The geology of Ohio formed beginning more than one billion years ago in the Proterozoic eon of the Precambrian. The igneous and metamorphic crystalline basement rock is poorly understood except through deep boreholes and does not outcrop at the surface. The basement rock is divided between the Grenville Province and Superior Province.
The face on Indian Head Rock. Taken 2008. The name Indian Head Rock comes from a carving on the bottom of the boulder with the features of a human face. It has been theorized that the face was carved by a Native American artist as a petroglyph, a boatman as a river gauge, or was carved by John Book from Portsmouth, Ohio who later fought in the Battle of Shiloh. [1]
However, Barnesville shares many similarities with other petroglyph sites in western Pennsylvania, northern West Virginia, and other parts of eastern Ohio; as a result, petroglyph specialist James L. Swauger concluded that it was the work of the people that also created such sites as the Indian God Rock, the Sugar Grove Petroglyphs, and the ...
Inscription Rock is a large slab of limestone measuring approximately 32 by 21 feet located on the south shore of Kelleys Island in Lake Erie in Erie County, Ohio.It is situated near the intersections of E Lakeshore Drive and Addison Rd under a large shelter structure with a viewing platform and is open to the public.
The Cleveland Shale is a shale geologic formation in Ohio in the United States. The Cleveland Shale underlies much of northeast Ohio in beds of varying thickness. In northeast Ohio, the member does not appear east of the Grand River. [7] Measurements taken in northeast Ohio show the Cleveland Shale to be 7 feet (2.1 m) [7] to 100 feet (30 m ...
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The Pennsylvanian Pottsville Formation is a mapped bedrock unit in Pennsylvania, western Maryland, West Virginia, Ohio, and Alabama.It is a major ridge-former in the Ridge-and-Valley Appalachians of the eastern United States. [3]