The USGS Franklin pipe extensometer with a total depth of 860 feet.

The USGS Franklin pipe extensometer with a total depth of 860 feet.

Detailed Description

The USGS Franklin pipe extensometer with a total depth of 860 feet.

Details

Image Dimensions: 1250 x 1233

Date Taken:

Location Taken: VA, US

Credits

David L. Nelms, USGS