BANNER DAY U.S. Air Force Master Sgt. Craig Brown crawls through the famed mud pit during the 10th Annual Mather Mud Run during Air Force Week Sacramento in Rancho Cordova, Calif., Sept. 5, 2009. The Mud Run features two obstacle courses with low walls, tunnel crawls, a tire run, hay bale jumps and a low-crawl mud pit. Brown is assigned to the 615th Contingency Response Wing on Travis Air Force Base, Calif. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 813305-G-TBR24-517.jpg Photo Gallery