archive.org/web/20161101172914/http://www.panoramio.com/user/760796?with_photo_id=115079201 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161102062707/http://www.panoramio.com/user/163555?with_photo_id=110170900 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161030192110/http://www.panoramio.com/photo/124267245...
archive.org/web/20161029171133/http://www.panoramio.com/user/5514941?with_photo_id=94753138 operator: Panoramio described at URL: https://web.archive...
The area: "Industrial activity marked the early history of the Schuylkill River and nearby waterways. Even before the fishery of Fort St. Davids was established...
Péter '75 URL: https://web.archive.org/web/20161020101626/http://www.panoramio.com/user/1870655?with_photo_id=57740903 operator: Panoramio described...
archive.org/web/20161021100834/http://www.panoramio.com/user/1377516?with_photo_id=69064597 operator: Panoramio described at URL: https://web.archive...
archive.org/web/20161014090414/http://www.panoramio.com/user/3235795?with_photo_id=24592323 operator: Panoramio described at URL: https://web.archive...
English operator: Panoramio described at URL: https://web.archive.org/web/20161013093241/http://www.panoramio.com/photo/7252671...
archive.org/web/20161020003812/http://www.panoramio.com/user/3784466?with_photo_id=56559578 operator: Panoramio described at URL: https://web.archive...
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