An official website of the United States government

Here's how you know

Official websites use .mil

A .mil website belongs to an official U.S. Department of Defense organization in the United States.

Secure .mil websites use HTTPS

A lock () or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

US Army Corps of Engineers

Engineer Research and Development Center Website

/ /

A man and a woman collect soil samples in the woods.

250909-A-A1415-1001

Jillian Harms (left), Rock Island District natural resources specialist, and Lewis Wiechmann (right), St. Paul District forester, collect data on forest regeneration at a soil sampling plot near Keithsburg, Illinois, Sept. 9. USACE St. Paul District courtesy photo

Download Image: Full Size (4.54 MB)

Tags: Rock Island District, USACE, St. Paul district

Photo by: U.S. Army Corps of Engineers | VIRIN: 250909-A-A1415-1001.JPG

Photo Gallery