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  2. Western Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Western_Pennsylvania

    Western Pennsylvania is a region in the Commonwealth of Pennsylvania encompassing the western half of the state. Pittsburgh is the region's principal city, with a metropolitan area population of about 2.4 million people, and serves as its economic and cultural center. Erie, Altoona, and Johnstown are its other metropolitan centers. As of the ...

  3. Geology of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Pennsylvania

    Pennsylvania is also home to the famous Drake Oil Well in Titusville which helped give rise to the modern oil industry and two brand name motor oils, Quaker State (now owned by Royal Dutch Shell) and Pennzoil. Pennsylvania also has reserves of natural gas from both deeply buried source rocks and coal-bed areas.

  4. Allegheny Plateau - Wikipedia

    en.wikipedia.org/wiki/Allegheny_Plateau

    The Allegheny Plateau (/ ˌ æ l ɪ ˈ ɡ eɪ n i / AL-ig-AY-nee) is a large dissected plateau area of the Appalachian Mountains in western and central New York, northern and western Pennsylvania, northern and western West Virginia, and eastern Ohio. It is divided into the unglaciated Allegheny Plateau and the glaciated Allegheny Plateau.

  5. Geography of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Pennsylvania

    The Pennsylvania Dutch region in south-central Pennsylvania is a favorite for sightseers. The Pennsylvania Dutch, including the Amish, Mennonites, and at least 15 other sects are common in the rural areas around the cities of Lancaster, York, and Harrisburg with smaller populations extending northeast to the Lehigh Valley and up to the Susquehanna Valley.

  6. Category:Mountain ranges of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Category:Mountain_ranges...

    South Mountain Range (Maryland−Pennsylvania) (37 P) Pages in category "Mountain ranges of Pennsylvania" The following 11 pages are in this category, out of 11 total.

  7. Wills Mountain - Wikipedia

    en.wikipedia.org/wiki/Wills_Mountain

    The Pennsylvania part of Wills Mountain is in Bedford County, reaching an elevation of 2,782 feet (848 m). Although there are mountains in Pennsylvania's Appalachian Plateau that are higher, Wills Mountain is the highest in its Ridge and Valley physiographic province. Wills Mountain may have the highest prominence in Pennsylvania.