Sergeants Fernando Blancas, Jedidiah Birnie, Terry Barker, Jacob Cummins, Corporals Nicholas Davis, Alicia Frost and Javier Castellon all post with Staff Sgt. Nicholas Beberniss for a Mounted Color Guard portrait with Elephant Mountain in the background, at the stables aboard Marine Corps Logistics Base Barstow, Calif., Aug. 10. The Marine Corps is proudly celebrating the MCG's 50th year of service throughout 2017.