colby - map search
Topographic map nj14 of scale 1:1 000 000
English - US military - 1957 - 4Mb -
Topographic map 050283 of scale 1:63 000
English - US Geological Survey - 1963 - 4Mb -
Topographic map g19-b of scale 1:500 000
English - US military - 1988 - 8Mb -
Topographic map 068763 of scale 1:250 000
English - US Geological Survey - 1964 - 13Mb -