Strange Nature Phenomenon: Giant Ice Boulders at Good Harbor Bay, Lake Michigan

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ice boulders lake michigan

The shores of Good Harbor Bay on Lake Michigan are being invaded by a strange phenomenon: Giant ice boulders. Hundreds of basketball-sized ice boulders weighing up to 75 pounds have been piling up along the shores of Lake Michigan at Good Harbor Bay, which is part of the Sleeping Bear National Lakeshore for the last week or so. It’s not uncommon, but it’s definitely unusual.

The giant frozen balls are created when ice chunks form along the shore, get churned back and forth by the waves and grow slowly in the just-below-freezing water, a process that also helps to smooth the boulders. This natural winter phenomenon on the shores of Lake Michigan is grabbing the attention of people here in northern Michigan and across the entire country. – Up North Live

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