U.S Marines with Company G, 1st Battalion, 6th Marine Regiment, 2nd Marine Division, patrol during Mountain Training Exercise 2-19, at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., March 24, 2019. The purpose of MTX is to prepare Marines for harsh weather conditions while enhancing winter warfare skills in cold weather environments. - U.S Marines with Company G, 1st Battalion, 6th Marine Regiment, 2nd Marine Division, patrol during Mountain Training Exercise 2-19, at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., March 24, 2019. The purpose of MTX is to prepare Marines for harsh weather conditions while enhancing winter warfare skills in cold weather environments.

Marines with 2nd Battalion, 24th Marine Regiment, 23rd Marines, 4th Marine Division, begin their preparations of rappelling down a cliffside, during Mountain Exercise 3-18, at Mountain Warfare Training Center, Bridgeport, Calif., June 22, 2018. After completing Integrated Training Exercise 4-17 last year, 2nd Bn., 24th Marines took part in MTX 3-18 to further develop small-unit leadership and build an understanding of the different climates and scenarios they could face in the future. - Marines with 2nd Battalion, 24th Marine Regiment, 23rd Marines, 4th Marine Division, begin their preparations of rappelling down a cliffside, during Mountain Exercise 3-18, at Mountain Warfare Training Center, Bridgeport, Calif., June 22, 2018. After completing Integrated Training Exercise 4-17 last year, 2nd Bn., 24th Marines took part in MTX 3-18 to further develop small-unit leadership and build an understanding of the different climates and scenarios they could face in the future.

Corps to award sole source orders for cold weather boots and socks - U.S. Marines and Sailors clean up trash before leaving their campsite at Marine Corps Mountain Warfare Training Center in Bridgeport, Calif. Marine Corps Systems Command intends to award sole source purchase orders for two types of Intense Cold Weather Boots and Intense Cold Weather Socks to improve Marines’ performance in cold weather environments. (U.S. Marine Corps photo by Sgt. James Treviño)

Marines at the Mountain Warfare Training Center in Bridgeport, California, train in freezing temperatures to get comfortable with their gear and prepare for future missions. MWTC Marines worked with the Additive Manufacturing Team at Marine Corps Systems Command to print out same-day replacement clips for their snowshoes. - Marines at the Mountain Warfare Training Center in Bridgeport, California, train in freezing temperatures to get comfortable with their gear and prepare for future missions. MWTC Marines worked with the Additive Manufacturing Team at Marine Corps Systems Command to print out same-day replacement clips for their snowshoes.

U.S. Marines with Combat Logistics Battalion 15, 1st Marine Logistics Group, and 3rd Battalion, 4th Marine Regiment, 1st Marine Division, wait by a 500-gallon drum of water to conduct a Helicopter Support Team drill at Mountain Warfare Training Center, Bridgeport, California, Oct. 25, 2016. The drum was taken into the Sierra Mesa Mountains to support Marines who are conducting field operations during Mountain Exercise 6-16. - U.S. Marines with Combat Logistics Battalion 15, 1st Marine Logistics Group, and 3rd Battalion, 4th Marine Regiment, 1st Marine Division, wait by a 500-gallon drum of water to conduct a Helicopter Support Team drill at Mountain Warfare Training Center, Bridgeport, California, Oct. 25, 2016. The drum was taken into the Sierra Mesa Mountains to support Marines who are conducting field operations during Mountain Exercise 6-16.

Cpl. Robert Schmitt sews an Arctic camouflage net during cold weather training at Marine Corps Mountain Warfare Training Center, California, Jan. 21, 2016. The cold weather training done in the Sierra Mountains is a warm-up to Exercise Cold Response 1-16 in Norway. Nearly 80 Marines with 2nd LAAD Bn. participated in the two-weeklong exercise that taught basic mobility in snow, defensive and offensive tactics as well as basic cold weather and high altitude conditions training. - Cpl. Robert Schmitt sews an Arctic camouflage net during cold weather training at Marine Corps Mountain Warfare Training Center, California, Jan. 21, 2016. The cold weather training done in the Sierra Mountains is a warm-up to Exercise Cold Response 1-16 in Norway. Nearly 80 Marines with 2nd LAAD Bn. participated in the two-weeklong exercise that taught basic mobility in snow, defensive and offensive tactics as well as basic cold weather and high altitude conditions training.

Cpl. Immanuel Friddle, guide for Combat Logistics Battalion 252, prepares for a hike in Bridgeport, California, during Mountain Exercise 1-16, a cold weather training exercise, on Jan. 11, 2016. The training is a prerequisite for a large, multi-national exercise called Cold Response 16 that will take place in Norway, March of this year. Cold Response will challenge 12 NATO allies’ and partners’ abilities to work together and respond in the case of a crisis. - Cpl. Immanuel Friddle, guide for Combat Logistics Battalion 252, prepares for a hike in Bridgeport, California, during Mountain Exercise 1-16, a cold weather training exercise, on Jan. 11, 2016. The training is a prerequisite for a large, multi-national exercise called Cold Response 16 that will take place in Norway, March of this year. Cold Response will challenge 12 NATO allies’ and partners’ abilities to work together and respond in the case of a crisis.

Motor Transport Marines with 2nd Battalion, 6th Marine Regiment, and Combat Logistics Battalion 26, Headquarters Regiment, 2nd Marine Logistics Group, conduct a simulated convoy throughout the hills aboard Bridgeport, California, Jan. 14, 2015. The Marines learned how to operate the High Mobility Multipurpose Wheeled Vehicles and the small unit support vehicles in mountainous terrain during classroom instruction and practical application. - Motor Transport Marines with 2nd Battalion, 6th Marine Regiment, and Combat Logistics Battalion 26, Headquarters Regiment, 2nd Marine Logistics Group, conduct a simulated convoy throughout the hills aboard Bridgeport, California, Jan. 14, 2015. The Marines learned how to operate the High Mobility Multipurpose Wheeled Vehicles and the small unit support vehicles in mountainous terrain during classroom instruction and practical application.

Marines from 3rd Battalion, 1st Marine Division, 1 Marine Expeditionary Force recently conducted training aboard Marine Corps Mountain Warfare Training Center in Bridgeport, Calif., Aug. 18 to Sept. 17, 2014. The month-long exercise trained Marines in many facets all centered on mountaineering skills and high-altitude warfare. Assault climbing, rappelling, horse and mule packing, and small unit movements were all included during the exercise. - Marines from 3rd Battalion, 1st Marine Division, I Marine Expeditionary Force recently conducted training aboard Marine Corps Mountain Warfare Training Center in Bridgeport, California, Aug. 18 to Sept. 17, 2014. The month-long exercise trained Marines in many facets all centered on mountaineering skills and high-altitude warfare. Assault climbing, rappelling, horse and mule packing, and small unit movements were all included during the exercise.

U.S. Marine Pvt. Tyler Knotts, 19, from Kingwood, W.V., grips a ledge as he navigates his way up a cliff during Mountain Exercise 2014 aboard Marine Corps Mountain Warfare Training Center in Bridgeport, Calif., Sept. 1, 2014. Rice is an infantry rifleman with 1st Platoon, Lima Company, 3rd Battalion, 1st Marine Regiment. Marines with 3rd Battalion, 1st Marine Regiment will become the 15th Marine Expeditionary Unit’s ground combat element in October. Mountain Exercise 2014 develops critical skills the battalion will need during deployment. (U.S. Marine Corps photo by Sgt. Emmanuel Ramos/Released) - U.S. Marine Pvt. Tyler Knotts, 19, from Kingwood, W.V., grips a ledge as he navigates his way up a cliff during Mountain Exercise 2014 aboard Marine Corps Mountain Warfare Training Center in Bridgeport, Calif., Sept. 1, 2014. Rice is an infantry rifleman with 1st Platoon, Lima Company, 3rd Battalion, 1st Marine Regiment. Marines with 3rd Battalion, 1st Marine Regiment will become the 15th Marine Expeditionary Unit’s ground combat element in October. Mountain Exercise 2014 develops critical skills the battalion will need during deployment. (U.S. Marine Corps photo by Sgt. Emmanuel Ramos/Released)