Watersheds Cobbs Creek Watershed

Map Lovers’ Monday: More is not necessarily better.

Mount Moriah Historic Cemetery and Arboretum

Hopkins Darby 1877 map

Darby, Delaware County, Pennsylvania, 1877

Overbrook, as it was. A brief history of the Overbrook neighborhood of Philadelphia, focusing on changes in the natural landscape.

Stormwater Songs by John and Jan Haigis

Cobbs Creek in the Days of the Old Powder Mill

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

Black-and-white image of a brick sewer outlet that drains into a creek with trees and a hill behind it

Thomas Run sewer outlet at Cobbs Creek

Black-and-white image showing a man standing in a large concrete half-pipe

Thomas Run sewer outlet during construction

69th St. Sewer and Culvert across Lansdowne

69th St. Sewer and Culvert across Lansdowne AVe.

Upper Darby map, G.M. Hopkins 1877

Upper Darby map, 1877