AS07-04-1593 (21 Oct. 1968) --- This Earth observation photograph shows Argentina, Chile, Bolivia, Salar de Atacama, the Andes Mountains, and Gran Chaco. The coordinates for the center of this photograph are 23.00 degrees south and 67.30 degrees west, taken at an altitude of 175 miles during the 154th revolution around Earth. The crew consisted of astronauts Walter M. Schirra, Donn F. Eisele and Walter Cunningham.