Anapolis is an old ranching trade center that became important with the construction of Goiania and Brasilia. Situated between the two Capitals, and linked by major highways to Belem in the north and Sao Paulo to the south, Anapolis became the major industrial center of the central-west. With about 300,000 inhabitants Anapolis has environmental problems from the pollution of its rivers including the Antas that joins the Rio Corumba. Anapolis is located near the Ecological Park Ulysses Guimaraes and the protected historical towns of Pirenopolis and Corumba de Goias.