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10th Annual Smithsonian Magazine Photo Contest Natural World
Arch Rock is located on Mackinac Island, MI. This natural limestone arch formed during the Nipissing post-glacial period, a period of high Lake Huron levels following the end of the Wisconsin glaciati

Arch Rock is located on Mackinac Island, MI. This natural limestone arch formed during the Nipissing post-glacial period, a period of high Lake Huron levels following the end of the Wisconsin glaciation.

Photo Detail
Date Taken: 07.2012
Date Uploaded: 07.2012
Photo Location: Mackinac Island, Michigan, United States of America
Camera: Canon EOS REBEL T2i
Copyright: © Amanda Vogelsang