Subjects Natural Environment

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

Smith’s and Windmill Islands

Cobbs Creek: A Brief Historical Overview by Adam Levine

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

Streams, islands, and ferries of early Philadelphia

A black-and-white image of a small ship with white sails on a river in front of a landscape of trees and the riverbank

The Shield passing the site of Philadelphia (Watson’s Annals)

Penn's Treaty with the Lenape

Penn’s Treaty with the Indians (Watson’s Annals)

Penn landing at Chester

Penn landing at Chester (Watson’s Annals)

Dock Creek and Blue Anchor Inn

Penn Landing at Blue Anchor, from Watson’s Annals

Delaware Caves

Caves and inhabitants on the Delaware River, Watson’s Annals