Goyder’s Line is a line on a map which shows the difference between wetter areas and drier areas in the state of South Australia. The line was drawn in 1865 by George Woodroffe Goyder, a surveyor sent by the South Australian government to figure out how to use the land for farming. Goyder's Line begins in the Gulf of Spencer, near the city of Adelaide, and moves northeast, up past the city of Port Augusta. Areas south and west of the line get enough rainfall for farming, while the dryer areas to the northeast are better for grazing animals like sheep and cattle. Farmers in South Australia use Goyder’s Line to decide where it is best to grow crops, and where it is best to raise animals.