An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

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

Photos

Snapshots of what’s happening in the Defense Department.

Navigating the Khumbu Icefall.

Khumbu Icefall

Members of the U.S. Air Force 7 Summit Challenge Team navigate through the Khumbu Icefall during their expedition to the summit of Mount Everest, April 23, 2013. The icefall is formed by the Khumbu Glacier. Its constant and unpredictable movement makes crossing the Icefall especially dangerous, often opening giant crevasses with little to no warning.

  • Download: Full Size (1.54 MB)
  • Tags: DoD
  • Credit: Courtesy of Air Force Lt. Col. Rob Marshall VIRIN: 130423-O-ZZ999-252C.JPG
Photo Gallery