Duere - map search
Topographic map xc22-4 of scale 1:500 000
Porto Nacional, Manuel Botelho, Bacaba, Perdizes, Bacabal, Pium, Brejinho De Nazare, Piunzinho, Brejo Verde, Porteira
Russian - Soviet military - 3Mb -
Brazil - South America
Topographic map n27 of scale 1:1 000 000
Rio Tocantins, Rio Das Mortes, Brasilia, Cuiaba, Rio Braco Menor, Porto Nacional, Ceres, Varzea Grande, Formosa, Goias
English - US military - 1973 - 5Mb -
Brazil - South America