Buco del Piombo, Show cave and geological formation in Erba, Italy.
The cave entrance measures 45 meters in height and 38 meters in width, featuring natural limestone formations carved by water erosion.
Archaeological excavations in 2002 uncovered artifacts from the 7th century, including remnants of defensive structures against Langobard invasions.
The site contains a significant collection of bear bones and Paleolithic tools, now exhibited at the Civic Museum of Erba.
Access to the cave interior remains restricted for safety reasons, but visitors can reach the entrance through marked trails from Alpe del Vicerè.
The cave derives its name from the lead-gray patina covering its rocks, resulting from limestone alteration over time.
Location: Erba
GPS coordinates: 45.82587,9.19926
Latest update: March 6, 2025 21:23
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