Pennsylvania Horse Property, Horse Farms, and Ranches for Sale
 
Pennsylvania has been known as the Keystone State since 1802, based in part upon its central location among the original Thirteen Colonies forming the United States. Another one of Pennsylvania's nicknames is the Quaker State; Pennsylvania has 51 miles of coastline along Lake Erie and 57 miles of shoreline along the Delaware Estuary. Philadelphia is Pennsylvania's largest city and is home to a major seaport and shipyards on the Delaware River.