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Natural Bridge State Park

Birding in Massachusetts

Natural Bridge State Park
McAuley Road
North Adams, Massachusetts 01247
Natural Bridge State Park webpage

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Berkshire County

Natural Bridge SP
Coordinates: 42.7075, -73.0913889
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About Natural Bridge State Park
Natural Bridge State Park is home to the only natural white marble arch in North America. According to geologists, the park’s namesake natural bridge, made of 550 million-year-old bedrock marble, was carved into its iconic arch by the forces of glacial meltwater over 13,000 years ago. Today, the bridge spans the bubbling Hudson Brook as it twists and tumbles through a steep 60-foot gorge–one of the best demonstrations of glacial erosion in New England.

Inside the park, visitors can also tour an abandoned marble quarry and check out a white marble dam–also the only one in North America.

The trail is a walk above and through the breathtaking quarter-mile chasm. See the description of a Self Guided Tour of the chasm and quarry.
From Natural Bridge State Park webpage