An extensometer borehole

A picture of an extensometer borehole

Detailed Description

An extensometer borehole, found in the San Joaquin Valley. In order to determine if this abandoned extensometer is still in workable condition, the USGS will deploy small cameras down this borehole. USGS Photo by Michelle Sneed


Image Dimensions: 1000 x 1333

Date Taken:

Location Taken: US