Glen Rock in Glen Rock, New Jersey

The Glen Rock is a massive glacial gneiss boulder and the namesake of the town in which it sits in the center. The Glen Rock is a New Jersey state landmark and a unique geological and cultural landmark for North Jersey.

The 570-ton boulder has been sitting here since long before there was a road or a town surrounding it. The Lenape tribe called it Pamackapuka, and used the massive stone as a trail marker and location for signal fires. It measures 44 feet wide, 22 feet high, and 12 feet long.

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