Wednesday 27 February 2019

High-tech laser scans uncover hidden military traverse at Alcatraz Island

(Binghamton University) High-tech radar and laser scans have uncovered a hidden military traverse underneath the infamous Alcatraz penitentiary, according to research led by faculty at Binghamton University, State University of New York.

from EurekAlert! - Archaeology https://ift.tt/2EAl9fO

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