Skip to main content
U.S. flag

An official website of the United States government

Publications

These publications showcase the significant science conducted in our Science Centers.

Filter Total Items: 16778

Water resources of the Philadelphia district

The area included in the Philadelphia district lies between 39° 45' and 40° 15' north latitude and 75° and 75° 30' west longitude. It has a length of 34.50 miles from north to south and a width of 26.53 miles from east to west, and covers one-fourth of a square degree, which is equivalent, in that latitude, to, about 915.25 square miles. It is mapped on the Germantown, Norristown, Philadelphia, an
Authors
Florence Bascom