Orange River Mouth. 28/06/91; Northern Cape; 2,000 ha; 28°40'S 016°30'E. Added to the Montreux Record, 26 September 1995. Transboundary area of extensive saltmarshes, freshwater lagoons and marshes, sand banks, and reedbeds shared by South Africa and Namibia. Important for resident birds and for staging locally migrant waterbirds. The upper Orange River serves as a domestic water source and is experiencing increasing demand. This could severely restrict the amount of water reaching the site. Following the collapse of the saltmarsh component of the estuary, the site was placed on the Montreux Record in 1995. The rapid degradation was the result of adjacent diamond mining activities and flow regulation of the Orange River as a result of dam construction. Ramsar site no. 526. Most recent RIS information: 1990.