The term DEER SOUTH AMERICAN can be broken down into three crossword solutions: INCA (4 letters), LLAMA (5 letters), and ANDES (5 letters). The INCA were an ancient South American civilization that flourished in the ANDES Mountains of Peru from the 12th to 16th centuries. The LLAMA is a domesticated South American camelid, widely used as a pack animal by the INCA and other cultures of the ANDES region. The ANDES Mountains are the longest continental mountain range in the world, stretching along the western coast of South America.