keystone lake - map search

Topographic map 068961 of scale 1:250 000

English - US Geological Survey - 1959 - 18Mb -

Topographic map g20-a of scale 1:500 000

English - US military - 1994 - 11Mb -

Topographic map 068961 of scale 1:250 000

English - US Geological Survey - 1954 - 10Mb -

Topographic map 068769 of scale 1:250 000

English - US Geological Survey - 1958 - 11Mb -