Alabama minerals map 'Mineral resources map of Dallas County, Alabama,' Alabama Geological Survey Special Map 122, by Szabo, M. W. , published in 1976, with a scale of 1:126,720. This county minerals map, GSA internal feature identification number ALMAP.24.20.SM122, has documented the following commodity(ies): clay, limestone (arenaceous), limestone (chalk) , phosphate, sand, sand and gravel.