August 24, 2010
A rock bridge known as a sea arch on the shoreline in Tettegouche State Park collapsed sometime Friday or Saturday, leaving behind a tree-covered stone pillar isolated in the lake.
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Tettegouche State Park, MN, USA — "I came to photograph this location at 5:30 AM on Saturday the 21st without any idea of what had happened," wrote photographer Brett Nord. "I believe this is the first photograph ever taken of the new sea stack." (Photo courtesy Brett Nord of Duluth) link to this photo
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Sea arches form from caves hollowed out by waves from two different directions. But eventually, the combination of waves, freeze and thaw cycles and erosion bring an arch down. (Photo courtesy Jon Mick of Roseville) link to this photo
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The Tettegouche arch collapsed sometime Friday or Saturday, leaving behind a tree-covered stone pillar isolated in the lake. (Photo courtesy Ken Jackson) link to this photo
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Tettegouche's park manager said the arch was probably the park's second most popular attraction behind Shovel Point, a spectacular clifftop walk high above the lake. (Photo courtesy Ken Jackson) link to this photo
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There could be a day when wind, waves and time open another arch, somewhere along the craggy cliffs and rocky North Shore of Lake Superior. (Photo courtesy Joe Moriarity of Forest Lake) link to this photo
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