2008. október 27., hétfő

Philadelphia topography

Philadelphia is located at 40° 00′ north latitude and 75° 09′ west longitude. According to the United States Census Bureau, the city has a total area of 142.6 square miles (369.3 km2), of which 135.1 square miles (349.9 km2) is land and 7.6 square miles (19.7 km2), or 5.29%, is water. Bodies of water include the Delaware and Schuylkill Rivers, and Cobbs, Wissahickon, and Pennypack Creeks.
The lowest point is sea level, while the highest point is in Chestnut Hill, at approximately 445 feet (136 m) above sea level (near the intersection of Germantown Avenue and Bethlehem Pike).
Philadelphia is located on the Fall Line separating the Atlantic Coastal Plain from the Piedmont.The rapids on the Schuylkill River at East Falls disappeared after the completion of the Fairmount Dam.
The city is the seat of its own county. The adjacent counties are Montgomery to the north; Bucks to the northeast; Burlington County, New Jersey to the east; Camden County, New Jersey to the southeast; Gloucester County, New Jersey to the south; and Delaware County to the west.

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