Subjects Natural Environment

Pennypack Park and Creek map, Roland Williams, 2005

Pennypack Park Map

Black-and-white image of an ornately lettered document with a decorative border

Images from ‘The Water Supply of the City of Philadelphia by a proposed Aqueduct from Norristown Dam’

Image shows a black-and-white drawing of a creek with dotted lines indicating where changes will be made

“A Snake That Will Be Straightened Out,” map of Frankford Creek with proposed changes, 1949

Birkinbine Schuylkill Hydrographical Survey 1861-66

Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine

New Plan of Philadelphia, John A. Paxton, 1811

1914 map showing the plan for the collection and treatment of sewage in Philadelphia.

Plan for the Collection, Treatment and Disposal of Sewage, 1914