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Watersheds
Delaware River Watershed
Map Lovers’ Monday: Topography of Philadelphia from 1863
Pine Street sewer plan, 1848
Dock Creek Sewer in 1849
From Creek To Sewer
Streams, islands, and ferries of early Philadelphia
Delaware River at Arch Street from the New Jersey side, 1914
The City and Port of Philadelphia on the River Delaware from Kensington, 1800
Philadelphia the Manufacturing and Industrial Capital map, 1906
Bird’s eye view of Delaware River and Philadelphia, about 1840
Penn’s Treaty with the Indians (Watson’s Annals)
Beach Street Bridge, March 20, 1900