Natural Bridge State Park (Massachusetts)

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The Natural Bridge State Park is located in the small town of North Adams in northwestern Massachusetts.

The State Park is the only natural stone white marble located in North America. According to geologists, the eponymous for the park natural bridge from 550 million years old Marble, which was eroded by glacial melt water over a period of 13,000 years, it became.

Beginning of the 20th century was mined and processed at the site of today's state parks marble. For this purpose, a marble dam was built, the dammed water driving a 120 kW Francis turbine with a height of 15 m. The energy needed for the adjacent marble mill. The machinery was completely destroyed in a fire on April 4, 1947.