Description
Summit Tunnel (Tunnel 2) with damage from the 1906 San Franciscio earthquake near north portal.png
English:
Damage within the Summit Tunnel near the north portal caused by a slip in the San Andreas Fault Zone in the 1906 San Francisco Earthquake. For more geologic information, see
https://pubs.usgs.gov/publication/ofr91593
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PD-1923
Public domain
in the United States
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