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~ Baltimore MD topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1957, updated 1979
~ Baltimore MD topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1961
~ Baltimore MD topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1989
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1894, updated 1894
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1894, updated 1896
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1894, updated 1897
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1899
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1899, updated 1902
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1907
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1911
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1915
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1924
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1936
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1942
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1904, updated 1947
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1943, updated 1963
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1943, updated 1965
~ Baltimore MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1944
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, 2016
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1953
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1953, updated 1956
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1953, updated 1968
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1953, updated 1975
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2011
~ Baltimore West MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2014
~ Baltimore West MD topo map, 1:31680 scale, 7.5 X 7.5 Minute, Historical, 1944
~ Barclay MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1905
~ Barclay MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1905, updated 1924
~ Barclay MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1905, updated 1944
~ Barclay MD topo map, 1:62500 scale, 15 X 15 Minute, Historical, 1951
~ Barren Island MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, 2016
~ Barren Island MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1942, updated 1957
~ Barren Island MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1942, updated 1971
~ Barren Island MD topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1942, updated 1978