TOUGH MUDDER Marine veteran Lance Cpl. Erik Galvin leaps from an obstacle during a Tough Mudder competition in Temecula, Calif., Oct. 25. The event, which occurs at various locations around the United States, is a military-style obstacle course focusing on endurance and teamwork. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 057158-O-HUR63-370.jpg Photo Gallery