Granite Falls, Minnesota: World's Oldest Rock
Outdoors. The "World's Oldest Rock" historical marker next to it claims that the rock -- actually an outcropping of rock -- is 3.8 billion years old.
- Address:
- Hwy 67, Granite Falls, MN
- Directions:
- Just south of town, outside the Yellow Medicine County Historical Society Museum, on the northeast corner of Hwy 67 and Hwy 23. Access only from Hwy 67, on its north side.
- Admission:
- Free
Visitor Tips and News About World's Oldest Rock
Reports and tips from RoadsideAmerica.com visitors and Roadside America mobile tipsters. Some tips may not be verified. Submit your own tip.
This wasn't really what we expected. Honestly, it's not quite up to what I would expect to find from what most people share on this site. We thought we would see one rock claiming that it's the oldest. At first, when we pulled up, it was hard to tell which of the rocks was the one. After reading the marker, it's "some of" the world's oldest rocks.
[Sarah, 06/16/2020]Nearby Offbeat Places
Fagen Fighters WWII Museum, Granite Falls, MN - 4 mi.
Giant Corn Gazebo, Olivia, MN - 27 mi.
Norwegian Stabbur House, Milan, MN - 25 mi.Latest Tips Across Roadside America
Catch up on the latest discoveries from the road.
Explore Thousands of Oddball Tourist Attractions!
Unique destinations in the U.S. and Canada are our special obsession. Use our attraction recommendation and maps to plan your next road trip.
We agree that the plural use of "rock" is misleading, but the historical marker claim of "World's Oldest Rock" asserts craggy self-confidence. And how often do we get the chance to touch something 3.8 billion years old?