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~ Polk MO topo map, 1:24000 scale, 7.5 X 7.5 Minute, 2015
~ Polk MO topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2011
~ Polk MO topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1951
~ Polk MO topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1950, updated 1966
~ Polk MO topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1950, updated 1971