Thompson in Geauga County, Ohio — The American Midwest (Great Lakes)
Charles Martin Hall
1863-1914
As a youth of 22 years he unlocked from natures grasp the modern metal aluminum giving to the nation the countless benefits of the metal and the aluminum industry which his discovery made possible
Topics. This historical marker is listed in this topic list: Industry & Commerce.
Location. 41° 41.35′ N, 81° 3.053′ W. Marker is in Thompson, Ohio, in Geauga County. It is on Madison Road (Ohio Route 528) 0.1 miles south of Thompson Road, on the left when traveling north. Touch for map. Marker is in this post office area: Thompson OH 44086, United States of America. Touch for directions.
Regionally, this marker is in Greater Cleveland and in the Western Reserve. It is also in the American Midwest and on the Great Lakes. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy, the territory of the Mississippian Culture, and the Northwest Territory.
Other nearby markers. At least 8 other markers are within 7 miles of this marker, measured as the crow flies: Thompson Veterans Memorial (within shouting distance of this marker); Thompson Ledges / Thompson Ledges Park (approx. 0.3 miles away); Thompson Ledge Park (approx. 0.3 miles away); Frances Spatz Leighton (approx. 0.3 miles away); War of 1861-1865 (approx. 5 miles away); In Commemoration of Hendrick E. Paine (approx. 5.2 miles away); May the Forest be With You (approx. 6½ miles away); Edna A. Phelps (Ne Crofoot) and James A. Phelps (approx. 6.6 miles away). Touch for a list and map of all markers in Thompson.
Credits. This page was last revised on May 11, 2026. It was originally submitted on September 1, 2018, by Mike Wintermantel of Pittsburgh, Pennsylvania. This page has been viewed 366 times since then and 34 times this year. Photos: 1, 2. submitted on September 1, 2018, by Mike Wintermantel of Pittsburgh, Pennsylvania. 3. submitted on May 7, 2026, by Craig Doda of Napoleon, Ohio.


