USGS scientists attach an auger to drill for seismic survey
(Credit: Leslie C. Gordon, U.S. Geological Survey. Public domain.)
Detailed Description
USGS scientists Robert Sickler (below) and Rufus Catchings (standing) attaching a section of an auger bit in order to drill a hole for a seismic survey.
Details
Image Dimensions: 3264 x 2448
Date Taken:
Location Taken: Hayward, CA, US