A bit about Pennsylvania
In the middle and northwest of the United States' Atlantic region is the state of Pennsylvania. It also belongs to the US Great Lakes region. The states that border Pennsylvania are Delaware, Maryland, West Virginia, New York, New Jersey, Ohio, Lake Erie, and Canada. The state also includes the Appalachian Mountain range.
According to area, it is the third-ranked state in the US. Its total area is 46,055 square miles, including inland waters and Lake Erie waters. The Delaware River similarly defines its eastern border. The Piedmont, Allegheny Plateau, Atlantic Coastal Plain, and Erie Plains are the four other distinct regions that make up the state.