Swamp drill rig

Drill rig used to manuevre and install monitoring wells in the wetland
Originally uploaded in A Civil Action - The Woburn Toxic Trial:Resource Collections.

Image 8171 is a 375 by 562 pixel JPEG
Uploaded: Jan29 07

Last Modified: 2007-02-01 06:44:51
Permanent URL: http://serc.carleton.edu/download/images/8171/usgs_treaded_drill_rig.jpg

The file is referred to in 1 page
U.S. Geological Survey file photo
This item is in the public domain
and maybe reused freely without restriction.