Granite Falls in Yellow Medicine County, Minnesota — The American Midwest (Upper Plains)
World's Oldest Rock
Photographed by K. Linzmeier, September 25, 2013
1. World's Oldest Rock Marker
Site of some of the oldest exposed rock in the world. Geologists estimate this Granitic Gneiss was formed 3,800,000,000 years ago.
the Yellow Medicine County Historical Society
1975
Erected 1975 by the Yellow Medicine County Historical Society.
Topics. This historical marker is listed in this topic list: Natural Features. A significant historical year for this entry is 1975.
Location. 44° 48.199′ N, 95° 32.77′ W. Marker is in Granite Falls, Minnesota, in Yellow Medicine County. It can be reached from State Highway 67 east of State Highway 23, on the left when traveling east. Marker is by the Yellow Medicine County Historical Society Museum. Touch for map. Marker is at or near this postal address: 98 Minnesota State Highway 67 East, Granite Falls MN 56241, United States of America. Touch for directions.
Regionally, this marker is in Southwest Minnesota and specifically in the Minnesota River Valley. It is also in the American Midwest, in the Corn Belt, and on the Great Plains. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once Ruperts Land, the territory of the Mississippian Culture, and the Louisiana Purchase.
Other nearby markers. At least 8 other markers are within 7 miles of this marker, measured as the crow flies: Ancient Exposed Rocks (a few steps from this marker); Henry Hill 1829-1879 (within shouting distance of this marker); The Andrew J. Volstead House (approx. half a mile away); Votes for Women (approx. half a mile away); Former Site of the Granite Falls City Hall (approx. half a mile away); A Witness to Time
this page online
Another marker is no longer nearby. School Bell (was within shouting distance of this marker but has been confirmed missing).
Also see . . . Geology of Minnesota. Wikipedia entry. (Submitted on September 29, 2013.)
Photographed by K. Linzmeier, September 25, 2013
2. World's Oldest Rock Marker
Photographed by K. Linzmeier, September 25, 2013
3. World's Oldest Rock and Marker
Photographed by K. Linzmeier, September 25, 2013
4. World's Oldest Rock
Credits. This page was last revised on August 6, 2021. It was originally submitted on September 29, 2013, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 2,843 times since then and 144 times this year. Photos: 1, 2, 3, 4. submitted on September 29, 2013, by Keith L of Wisconsin Rapids, Wisconsin.
