Glaciers Left Rocks Everywhere | Bismarck News

Ever drive through North Dakota and wonder why your fields are littered with strange rocks? Blame the glaciers—massive ice sheets that swept south 20,000 years ago, dragging rocks from Canada and dropping them everywhere as they melted. While most of the state’s bedrock is sandstone and siltstone, those colorful, out-of-place boulders? Glacial erratics. The glaciers even rerouted rivers and carved the Badlands with wild erosion, causing landslides and frost-heaved rocks that still pop up in farmers’ fields today. These ancient ice giants didn’t just shape the landscape—they’re still messing with your land, one stubborn rock at a time. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/52add470faf27ecd