 
		 
		 
		Map Lovers’ Monday: Topography of Philadelphia from 1863
 
		Frankford Creek Watershed: A historical overview of the Philadelphia section
 
		Report on channelization of Frankford Creek for flood control (1947)
 
		Frankford Creek Watershed Historical Timeline
 
		Frankford Creek Watershed in the context of the development of Philadelphia’s sewers and sewage treatment system
 
		Two Frankford Creek Bridges, 1896-1899
 
		1882 Report from the Army Corps of Engineers on Navigation in Frankford Creek, Philadelphia
 
		Filling Low Land: A Story of Ash-Dumping in the Wingohocking Creek Watershed
