ArlyA
Super Member
- Joined
- Mar 18, 2016
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- Polaris Boss 6x6 with pods (tracks) Center actuating lawn mower by Husky
The valley we reside on was a washout that happened during the receding of the last glacier. The glacier came down from the NE and melted away in that direction as well. So as it melted, this created very large lake on the western side of the lake basin and when that grew enough to reach the Keweenaw mountain range, this became a dam it breached to flow south and washed out the great valley seen in this photo. Our house is 100's of feet above the water line today and near the top of this historical flood water.From google not my guess is this the answer ?
The Keweenaw Peninsula and Isle Royale, formed by the Midcontinent Rift System, are the only sites in the United States with evidence of prehistoric aboriginal mining of copper. Artifacts made from this copper by these ancient indigenous people were traded as far south as present-day Alabama.[3] These areas are also the unique location where chlorastrolite, the state gem of Michigan, can be found.