Marines attending the Winter Mountain Engineer Course, prepare explosives to trigger an avalanche at Marine Corps Mountain Warfare Training Center (MCMWTC), Bridgeport, California, Feb. 8, 2023. As part of the Winter Mountain Engineer Course, students learned how to use demolition to create holes in iced over lakes and trigger avalanches. ( Marine Corps photo by Cpl. Andrew Bray)

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Keywords: cord, det, explosion, ice, mwtc, usmc