Subjects Natural Environment

Plans and maps of the Pennypack Creek Watershed in Philadelphia

Report on channelization of Frankford Creek for flood control (1947)

Frankford Creek Watershed Historical Timeline

Color image of a grassy field with trees and buildings surrounding it and white lines drawn on the grass mimicking the path of a creek.

Drawing Dock Creek

Cobbs Creek in the Days of the Old Powder Mill

Requiem for a stream: Adams Run in Oak Lane

Smith’s and Windmill Islands

Black-and-white aerial photo of a creek bend with industrial buildings surrounding it

The Sad History of Frankford Creek

Black-and-white photograph depicts a large brick sewer tube lying on a barren landscape

Streams, islands, and ferries of early Philadelphia

Birkinbine Schuylkill Hydrographical Survey 1861-66

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