Putting on the Big Boots

Moving a Mountain

By DeAnn Kruempel
Posted 6/16/21

Twenty thousand years ago a glacier covered eastern South Dakota. On its amazing trek over mountain ranges, it broke off, moved and deposited rocks. The rocks varied in size and shape and mineral content, and much to the dismay of the farmers who came along hundreds of centuries later (and farmers’ children), that glacier left a lot of them.

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