otsego - map search
Topographic map 055959 of scale 1:63 000
English - US Geological Survey - 1918 - 6Mb -
Topographic map 054529 of scale 1:63 000
English - US Geological Survey - 1954 - 7Mb -
Topographic map f19 of scale 1:1 000 000
English - US military - 1990 - 14Mb -
Topographic map 068700 of scale 1:250 000
English - US Geological Survey - 1951 - 18Mb -