Lawson Adit
California, United States
The Lawson Adit is a horizontal mine tunnel, or adit, on the UC Berkeley campus, near the Hearst Mining Building, dug directly through the Hayward Fault. Started in 1916, the adit is named after Andrew Lawson, one-time Dean of the College of Mining at UC Berkeley.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).