Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Marker detail: Drilling pilot holes for dynamite
Photographer: Columbia Historic Preservation Society, Columbia, PA
Caption: Marker detail: Drilling pilot holes for dynamite
Submitted: August 31, 2018, by Cosmos Mariner of Cape Canaveral, Florida.
Database Locator Identification Number: p443548
File Size: 2.472 Megabytes

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