USGS scientists attach an auger to drill for seismic survey

two men wearing hard hats attaching a section of an auger to a drill

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.


Image Dimensions: 3264 x 2448

Date Taken:

Location Taken: Hayward, CA, US