otter lake - map search

Topographic map m15-4 of scale 1:500 000

Russian - Soviet military - 2Mb -

Topographic map f17-b of scale 1:500 000

English - US military - 1993 - 11Mb -

Topographic map 068696 of scale 1:250 000

English - US Geological Survey - 1963 - 12Mb -

Topographic map 068779 of scale 1:250 000

English - US Geological Survey - 1958 - 7Mb -