Big Sandy - map search

Topographic map g20 of scale 1:1 000 000

English - US military - 1989 - 16Mb -

Topographic map 074984 of scale 1:250 000

English - US Geological Survey - 1957 - 22Mb -

Topographic map g20-d of scale 1:500 000

English - US military - 1992 - 11Mb -