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Interstate Park

As the Ice Age ended, huge glaciers melted and the water carved the deep, steep-walled gorge known as the Dalles of the St. Croix. An 87-acre area around the Dalles is a state natural area.

Frost action and weathering over the years have formed interesting rock features such as the Old Man of the Dalles.

Be sure to be careful when exploring the rocky areas and rimrocks.

In addition to the Dalles, there are two other state natural areas in the park: