otter lake - map search
Topographic map 051040 of scale 1:63 000
English - US Geological Survey - 1926 - 7Mb -
Illinois
Topographic map d13 of scale 1:1 000 000
English - US military - 1973 - 13Mb -
Canada - North America
Topographic map e19 of scale 1:1 000 000
English - US military - 1983 - 10Mb -
Canada - North America
Topographic map 052183 of scale 1:63 000
English - US Geological Survey - 1925 - 6Mb -
Illinois
Topographic map 072233 of scale 1:250 000
English - US Geological Survey - 1944 - 6Mb -
Alaska
Topographic map nk15 of scale 1:1 000 000
English - US military - 1957 - 3Mb -
Illinois - Iowa - Minnesota - Missouri - Nebraska - North America - Wisconsin
Topographic map f18 of scale 1:1 000 000
English - US military - 1989 - 16Mb -
Canada - Illinois - Indiana - Iowa - Michigan - Minnesota - Missouri - New York - North America - Ohio - Pennsylvania - West Virginia - Wisconsin
Topographic map 069039 of scale 1:250 000
English - US Geological Survey - 1958 - 14Mb -
Minnesota - Wisconsin
Topographic map 068858 of scale 1:250 000
English - US Geological Survey - 1954 - 7Mb -
Canada - New York
Topographic map 068696 of scale 1:250 000
English - US Geological Survey - 1990 - 12Mb -
Illinois - Iowa - Missouri