Arch Rock is a geologic formation on Mackinac Island in Michigan. It is a natural limestone arch formed during the Nipissing post-glacial period, a period of high Lake Huron levels following the end of the Wisconsin glaciation. To this day Arch Rock stands on the Lake Huron shoreline 146 feet above the water.
Limestone breccia is not an ideal material for natural bridges, and this type of formation is quite rare in the North American Great Lakes region. The Native Americans saw Arch Rock as a place of numinous power, and told many stories and legends about it.
Since 1901, cars have been banned in Mackinac Island State Park.
Perhaps the most noticeable first impression visitors get of Mackinac Island is the absence of automobiles! Visitors and residents travel by foot, bicycle or horse drawn carriage
The Mackinac Bridge is a suspension bridge, connecting the upper and lower peninsulas of Michigan. Opened in 1957, the 26,372-foot-long (4.995 mi; bridge) (familiarly known as "Big Mac" and "Mighty Mac") is the world's 26th longest span and the longest suspension bridge between anchorages in the Western Hemisphere.We loaded up our bikes and took the Star Line Ferry.
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