UNH Geologist Explains Polar Caves Boulder Collapse

UNH Geologist Explains Polar Caves Boulder Collapse
October 23, 2026

UNH glacial geologist Joseph Licciardi spoke with NHPR about the dramatic collapse of an 80-ton boulder at Polar Caves in Rumney, N.H. Licciardi explained how thousands of years of natural weathering likely contributed to the collapse, drawing comparisons to the Old Man of the Mountain.

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UNH Geologist Explains Polar Caves Collapse

UNH professor offers insight into the geological forces behind a New Hampshire landmark’s dramatic collapse.

Published
October 23, 2026