Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics


Download a high-resolution (300dpi) digital image

Image Number K9960-1

Hydraulic engineer David Goodrich examines cottonwood leaves for signs of water stress in the San Pedro Riparian National Conservation Area.

Photo by Peggy Greb.



640 pixels wide: (k9960-1.jpg)




Please visit our Image Gallery

Last Modified: 8/12/2016
Footer Content Back to Top of Page