Have you ever seen or heard of a glacial pothole? These unique formations – also called giant’s kettles – are the result of powerful works of nature. They form when the bedrock is covered by a warming glacier. As the glacier melts, swirls of water drill down into the bedrock. The debris they carry creates the holes we call glacial potholes.

These formations are unusual, and there are few notable examples throughout the world. However, Minnesota happens to be home to more than 200 glacial potholes at Interstate State Park. If you’re interested in the forces that made Minnesota – or you simply crave a beautiful place to hike – you’ll find both at this fascinating park on Minnesota’s eastern border. Read on below to learn more:

Interstate State Park is a park that straddles the border of Minnesota and Wisconsin. About 1,300 acres lie in Wisconsin, and 300 acres lie in Minnesota. The Minnesota side is near the town of Taylors Falls.
Tony Webster/Flickr
Both sides offer beautiful views of the St. Croix River. Rocky, tree-covered cliffs rise above the river. Anyone interested in the geological forces that made Minnesota - or the state's beautiful landscapes - will enjoy a trip to this park.
MN Photos/Flickr
Hiking trails throughout the park let visitors explore all that it has to offer. River views are prevalent, and it's possible to spot birds and other wildlife along these trails. There's also a trail that follows an old railroad line.
Doug Kerr/Flickr

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You don't want to leave this park without exploring the potholes area, however. There are more than 200 glacial potholes at Interstate State Park!
Ryan Fonkert/Flickr
Some of the potholes are quite small, only a few inches in depth. But others are very large. The deepest explored pothole in the world is here! At 60 feet deep, it has been dubbed the Bottomless Pit!
Doug Kerr/Flickr
Each of the potholes is an interesting look back to Minnesota's earliest days. They were formed 10,000 years ago and still remain as evidence of the glaciers that once covered our state.
James St. John/Flickr
You'll love spending the day exploring these fascinating natural formations. Between the interesting geology and scenic beauty of this park, it'll quickly become one of your favorite Minnesota state parks!
Katrina Dam/Google

Have you ever been to Interstate State Park? What did you think? Let us know in the comments! And if you’re curious about other things left behind by the glaciers, check out our past articles about the Three Maidens at Pipestone National Monument and Glacial Lakes State Park.

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Interstate State Park, Milltown Road, Taylors Falls, MN, USA