This publication references formal individual and collective mountain warfare training programs available within the Department of Defense. Because of the rapid turnover in personnel, operating tempo, multitude of training commitments, and constraint of training resources for these environments, the Marine Corps Mountain Warfare Training Center cannot train all Marines. Therefore, this publication--used in conjunction with MCRP 3-35.1A, MCRP 3-35.1B, MCRP 3-35.1C, and MCRP 3-35.1D--identifies the skills that Marines need to be successful in mountainous, snow, or cold weather environments. During combat, these publications provide Marines with the doctrinal references they need to augment the instruction they receive from their unit's qualified mountain leaders.