The original U.S.-Mexico border marker 77 stands near

The original U.S.-Mexico border marker 77 stands near existing border barrier identified for replacement near Douglas, Arizona, Dec. 12, 2019. The 276 monuments marking the U.S.-Mexico border were erected after the Mexican-American War which ended in 1848. The USACE South Pacific Border District is providing contracting services, including design and construction oversight, of Department of Defense-funded Southwest border barrier projects in California, Arizona, New Mexico and Texas at the direction of the Administration and at the request of Department of Homeland Security, Customs and Border Protection agency.