Airmen 1st Class Matthew Chroniak, 28th Maintenance Squadron nondestructive inspection technician, and Joshua Ray, 28th Civil Engineer Squadron power production specialist, low crawl through mud and water during the 2012 Mud Run at Ellsworth Air Force Base, S.D., Oct. 23, 2012. The 1.5-mile course, which included 10 different obstacles, was designed to promote National Energy Action Month, set aside each year to educate and encourage responsible domestic energy production, energy efficiency, and the development of clean energy and renewable fuels.