Big Horn - map search

Topographic map nl12 of scale 1:1 000 000

English - US military - 1957 - 5Mb -

Topographic map 069027 of scale 1:250 000

English - US Geological Survey - 1958 - 10Mb -

Topographic map f17-a of scale 1:500 000

English - US military - 1988 - 8Mb -