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.
Lake Level Research on the Great Lakes Marker - upper right image

Caption: Lake Level Research on the Great Lakes Marker - upper right image
Additional Description: Dr. Peter Blanken
Submitted: October 10, 2019, by Joel Seewald of Madison Heights, Michigan.
Database Locator Identification Number: p497266
File Size: 3.084 Megabytes

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