oklahoma - map search
Topographic map 068947 of scale 1:250 000
English - US Geological Survey - 1954 - 10Mb -
Topographic map 054395 of scale 1:63 000
English - US Geological Survey - 1907 - 11Mb -
Topographic map 060498 of scale 1:63 000
English - US Geological Survey - 1956 - 6Mb -