Madison Boulder | boulder (geology), glacial erratic, National Natural Landmark

USA / New Hampshire / Albany /
 boulder (geology), glacial erratic, National Natural Landmark
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Madison Boulder (43°55′52″N 71°10′04″W), the largest known glacial erratic in New England, and among the largest in the world. Madison Boulder is a huge granite rock measuring 83 feet (25 m) in length, 23 feet (7.0 m) in height above the ground, and 37 feet (11 m) 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. It is located at a state park in the northwest part of town and is designated a National Natural Landmark.
Wikipedia article: https://en.wikipedia.org/wiki/Madison_Boulder
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Coordinates:   43°55'52"N   71°10'4"W
This article was last modified 4 years ago