A valley is a relatively large hollow or depression bounded by hills or mountains on Earth's surface that is developed by stream erosion or glacial activity and that is drained externally. A basin is another hollow or depression on Earth's surface, but it has no outlet to drain the water.
Location in Allegheny County and the state of Pennsylvania. Gibsonia is an unincorporated community and census-designated place in Richland Township, Allegheny County, in the U.S. state of Pennsylvania, north of the city of Pittsburgh. It had a population of 2,733 at the 2010 Census. Its ZIP code is 15044.
Kennedy Township, Allegheny County, Pennsylvania. Kennedy Township is a township in Allegheny County, Pennsylvania, United States. Conveniently located 10 miles west of Downtown Pittsburgh and 12 miles east of Pittsburgh International Airport. The population was 7,672 at the 2010 census.