Page Banner

United States Department of Agriculture

Agricultural Research Service

Download a high-resolution (300dpi) digital image here.

Image Number D2399-1

Technicians Kent Heikens (left) and Ben Knutson examine a core sample from the bio-reactor. The topsoil covering the wood chips is seen in the foreground.


Photo by Peggy Greb.

640 pixels wide: (d2399-1.jpg)

Please visit our Image Gallery

Last Modified: 8/13/2016
Footer Content Back to Top of Page