General Contents - Monroe Audrain [counties]: Stratigraphy - Archimedes Limestone, Coal Measures, Encrinital Limestone, Ferruginous Sandstone, Hydraulic Limestone, Keokuk Limestone, Ste. Genevieve Marble: Minerals - gypsum, iron oxide, ochre iron ore, pyrite: Lithologies - bituminous shale, chert, clay, coal, conglomerate, dolomite, limestone, sandstone, shale: Mines/quarries - coal banks, drifts, pits, shafts, limestone quarry; Mansfield Shaft, RM Clelland Coal, James Coal, PB Reeds, Wm G Brown Coal, Wm E Jones Coal, Jones Coal, Thos J Hubbards Coal, M Kaines Heirs Coal, Sanders Coal, Thos Barkis Coal, other named mines: Paleontology - archimedes, brachiopods, bryozoans, corals, crinoids, productids, spirifers, sponges, others; numerous [...]
