Hanging Rock and Wabash Reef National Natural Landmark
Lagro Township, IN
Nature
Hanging Rock National Natural Landmark is a 4-acre site in Wabash County, Indiana, that was designated a National Natural Landmark in May 1986. The site, located on the southern bank of the Wabash River near the town of Lagro, contains an impressive natural exposure of fossilized coral reef dating from the Silurian Period some 400 million years ago.
From Wikipedia, CC BY-SA 4.0
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