Rivers & Creeks Delaware River

City of Reading map, 1872

Street map of Reading, Pennsylvania, 1872

Fairmount Park topographical map, showing East Park Reservoir, 1872

Philadelphia Navy Yard, July 1872

Hopkins Darby 1877 map

Darby, Delaware County, Pennsylvania, 1877

Outline Map of the County and City of Philadelphia and Vicinity (wd000516)

Outline Map of the County and City of Philadelphia and Vicinity, 1883

Birkinbine Schuylkill Hydrographical Survey 1861-66

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

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876

Upper Darby map, G.M. Hopkins 1877

Upper Darby map, 1877