Personnel with the Conservation, Natural Resource section of Range Management, Marine Corps Air Station (MCAS) Yuma, pose for portrait photographs on ranges owned by MCAS Yuma, Jan. 17, 2019. The Conservation staff is responsible for all areas of wildlife management and recreation on all 1.2 million acreas of MCAS Yuma ranges. (U.S. Marine Corps photo by Sgt. Allison Lotz) - Personnel with the Conservation, Natural Resource section of Range Management, Marine Corps Air Station (MCAS) Yuma, pose for portrait photographs on ranges owned by MCAS Yuma, Jan. 17, 2019. The Conservation staff is responsible for all areas of wildlife management and recreation on all 1.2 million acreas of MCAS Yuma ranges. (U.S. Marine Corps photo by Sgt. Allison Lotz)