Photograph as originally submitted to
this page in the Historical Marker Database
www.HMdb.org.
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Photographer: Mike Wintermantel
Caption:
Monongahela's First Lock and Dam Marker | Additional Description: Marker is in the middle
Submitted: July 1, 2020, by Mike Wintermantel of Pittsburgh, Pennsylvania.
Database Locator Identification Number: p528288
File Size: 0.603 Megabytes
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