isabella lake - map search
Topographic map 068661 of scale 1:250 000
English - US Geological Survey - 1956 - 11Mb -
Topographic map g18 of scale 1:1 000 000
English - US military - 1988 - 13Mb -
Topographic map 068661 of scale 1:250 000
English - US Geological Survey - 1962 - 11Mb -