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Field Guide

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Ready to Rock on the Great Lakes Coastline

The state’s 3,200 miles of Great Lakes coastline yield a bounty of treasures besides agates, notably Petoskey stones.   About 350 million years ago, when what is now Michigan was covered by sea water, the coral hexagonaria percarinata formed reefs that, eons later, were broken up by glaciers that moved across the land.

Isle Royale: The Nation’s Isolated Paradise

Isle Royale is considered one of the least accessible parks in the 50 states because there are no roads on the island and no roads lead to it. Visitors can reach the wilderness area only by float plane, passenger ferries or private boat, and only from mid-April through October.

48 Hours on Mackinac Island

Today, with its pastel-colored hotels, shops, grand “cottages” and historic and scenic sites, Mackinac Island is still a gathering place, a special destination year-round, but especially from May through October.