Chestnut Ridge, Bedford County
Encyclopedia
Chestnut Ridge is an elongate hill trending northeast-southwest in west-central Bedford County
Bedford County, Pennsylvania
Bedford County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 49,762. The county seat is Bedford. It is part of the Altoona, Pennsylvania, Metropolitan Statistical Area.- History :...

, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

. It is partially forested with rural homes, farms, and notably apple orchards. Four small towns surround it: Schellsburg
Schellsburg, Pennsylvania
Schellsburg is a borough in Bedford County, Pennsylvania, United States. The population was 316 at the 2000 census.-Geography:Schellsburg is located at...

, New Paris
New Paris, Pennsylvania
New Paris is a borough in Bedford County, Pennsylvania, United States. The population was 214 at the 2000 census. New Paris is located northwest of Bedford, north of Schellsburg and ENE of Somerset.-History:...

, Fishertown, and Pleasantville
Pleasantville, Bedford County, Pennsylvania
Pleasantville is a borough in Bedford County, Pennsylvania, United States. The population was 211 at the 2000 census.-Geography:Pleasantville is located at...

. Shawnee State Park and Shawnee Lake lie immediately to the south of the ridge.

Chestnut Ridge School District
Chestnut Ridge School District
The Chestnut Ridge School District covers the Boroughs of New Paris, Pleasantville, St. Clairsville and Schellsburg and East St. Clair Township, Juniata Township, King Township, Lincoln Township, Napier Township, Pavia Township and West St. Clair Township in Bedford County, Pennsylvania. It...

 is named after the ridge.

Geology

Geologically, Chestnut Ridge is a doubly plunging anticline
Anticline
In structural geology, an anticline is a fold that is convex up and has its oldest beds at its core. The term is not to be confused with antiform, which is a purely descriptive term for any fold that is convex up. Therefore if age relationships In structural geology, an anticline is a fold that is...

. The bedrock along the axis is the Devonian
Devonian
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...

 Onondaga Formation and Old Port Formation
Old Port Formation
The Devonian Old Port Formation is a mapped bedrock unit in Pennsylvania, Maryland, and West Virginia. Members of the unit are also mapped in New Jersey and Virginia as parts of other formations or groups.-Description:...

, consisting primarily of sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

. The crest of the hill is at approximately 1700 feet (518.2 m) elevation.

The New Enterprise Stone & Lime Co., Inc. New Paris Quarry (inactive) is located on the northwest flank of the ridge. Early Devonian
Devonian
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...

 Limestone
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

 of the fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

iferous Keyser Formation
Keyser Formation
The Late Silurian to Early Devonian Keyser Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia, and West Virginia.-Description:...

 is quarried there.

See also Geology of Bedford County, Pennsylvania
Geology of Bedford County, Pennsylvania
Bedford County, Pennsylvania is situated along the western border of the Ridge and Valley physiographic province, which is characterized by folded and faulted sedimentary rocks of early to middle Paleozoic age...

.
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