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Madison Boulder is the largest known erratic in New England, and among the largest in the world. Madison Boulder is a huge granite rock measuring 83 feet in length, 23 feet in height above the ground, and 37 feet in width. It weighs upwards of 5,000 tons! A part of this roughly rectangular block is buried, probably to a depth of ten to twelve feet.
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Rated 2.81/5 (56.15%) (26 Votes)
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