Digging a Paleoseismic Trench at Tule Pond

Detailed Description
Paleoseismologists from the U.S. Geological Survey opening a trench on the southern Hayward fault at a site called Tule Pond.
Sources/Usage
Public Domain.
Paleoseismologists from the U.S. Geological Survey opening a trench on the southern Hayward fault at a site called Tule Pond.
Public Domain.