Alabama minerals map 'Mineral resources of Marshall County, Alabama,' Alabama Geological Survey Special Map 234, by Dean, L. S. , published in 1992, with a scale of 1:126,720. This county minerals map, GSA internal feature identification number ALMAP.48.20.SM234, has documented the following commodity(ies): chert, clay, limestone (argillaceous), limestone (cherty), limestone (crystalline), sand, sand and gravel, sandstone, shale, silt.