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.
Geology of Duluth Harbor Marker
Photographer: Keith L
Taken: September 26, 2007
Caption: Geology of Duluth Harbor Marker
Submitted: February 3, 2008, by Keith L of Wisconsin Rapids, Wisconsin.
Database Locator Identification Number: p15234
File Size: 0.487 Megabytes

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