imperial beach nolf - map search

Topographic map 051745 of scale 1:63 000

English - US Geological Survey - 1940 - 3Mb -

Topographic map 013791 of scale 1:24 000

English - US Geological Survey - 1957 - 3Mb -

Topographic map 051745 of scale 1:63 000

English - US Geological Survey - 1957 - 4Mb -

Topographic map 074959 of scale 1:250 000

English - US Geological Survey - 1961 - 4Mb -