clarks green - map search
Topographic map 062222 of scale 1:63 000
English - US Geological Survey - 1889 - 8Mb -
Topographic map 069021 of scale 1:250 000
English - US Geological Survey - 1965 - 13Mb -
Topographic map 069021 of scale 1:250 000
English - US Geological Survey - 1953 - 15Mb -