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Port Clinton in Ottawa County, Ohio — The American Midwest (Great Lakes)
 

This Millstone

 
 
This Millstone Marker image. Click for full size.
Photographed by Craig Doda, April 16, 2022
1. This Millstone Marker
Inscription. This millstone originally located on the property of Col. S. M. Lockwood on the North Shore of Sandusky Bay was used in the early process of grinding gypsum, which was first discovered in Ohio in 1821.
 
Topics. This historical marker is listed in this topic list: Industry & Commerce. A significant historical year for this entry is 1821.
 
Location. 41° 30.801′ N, 82° 56.245′ W. Marker is in Port Clinton, Ohio, in Ottawa County. It is at the intersection of Adams Street and Adams Street, on the right when traveling east on Adams Street. Touch for map. Marker is in this post office area: Port Clinton OH 43452, United States of America. Touch for directions.

Regionally, this marker is on the Lake Erie Shore and in the Toledo Metropolitan Area. It is also in the American Midwest, on the Great Lakes, and in the Corn Belt. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, the territory of the Mississippian Culture, and the Northwest Territory.
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Other nearby markers. At least 8 other markers are within walking distance of this marker: Battle Of Lake Erie Gun (within shouting distance of this marker); This Anchor (about 300 feet away, measured in a direct line); Indian Mill Stone (about 500 feet away); 1912 Matthews 35' "Detroit" (about 600 feet away); Saint Thomas Episcopal Church (about 700 feet away); Keeper's Boathouse (about 700 feet away); "Lightkeepers" (approx. 0.2 miles away); Port Clinton Light Station (approx. 0.2 miles away). Touch for a list and map of all markers in Port Clinton.
 
This Millstone Marker image. Click for full size.
Photographed by Craig Doda, April 16, 2022
2. This Millstone Marker
This Millstone Marker image. Click for full size.
Photographed by Craig Doda, April 16, 2022
3. This Millstone Marker
This Millstone Marker image. Click for full size.
Photographed by Craig Doda, April 16, 2022
4. This Millstone Marker
 
 
Credits. This page was last revised on May 15, 2022. It was originally submitted on April 27, 2022, by Craig Doda of Napoleon, Ohio. This page has been viewed 239 times since then and 16 times this year. Photos:   1, 2, 3, 4. submitted on April 27, 2022, by Craig Doda of Napoleon, Ohio. • Bill Pfingsten was the editor who published this page.
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Jul. 12, 2026