Years Ago at Lone Lake EarthCache

Lone Lake is a Kettle lake that was formed approximately fifteen thousand years ago. The Grantsburg Sublobe glacier was over a half mile high and moved through this area. As it moved, it pushed a huge amount of dirt in front of it. Think of a giant bulldozer pushing a huge mound of dirt. The climate changed in the area and the glacier began to retreat. As the glacier retreated it left the dirt that it was pushing and formed the hills that you are standing on. While the glacier was retreating, a large block of ice broke off the glacier, and just sat there. As the glacier continued to melt, the debris from the glacier (soil, rocks, stones, gravel, etc.) filled in around the block of ice. When the block of ice finally melted, all the debris surrounding it fell into the hole, creating the kettle type basin, which when filled with water, became Lone Lake as we know it today.