01765nem 2200517 450 991071352700332120200529162658.0(CKB)5470000002502396(OCoLC)1155889059(EXLCZ)99547000000250239620200529d1980 ua enga|||||||||||||||||||||dur|||||||||||crirdacontentcrdamediacrrdacarrierPotentiometric surface maps of the Sparta Sand ; northern Louisiana and southern Arkansas,1900, 1965, 1975, and 1980 /by G.N. Ryals[Reston, Va.] :Department of the Interior, United States Geological Survey,1981.1 online resource (1 map)Open-file report ;80-1180Relief shown by contours and spot heights.Includes location map and 3 ancillary maps.Potentiometric maps of the Sparta Sand ; northern Louisiana and southern Arkansas, 1900, 1965, 1975, and 1980GroundwaterArkansasMapsGroundwaterLouisianaMapsAquifersArkansasMapsAquifersLouisianaMapsGroundwaterfastLouisianafastMaps.fastMaps.lcgftGroundwaterGroundwaterAquifersAquifersGroundwater.Ryals G. N.GPOGPOBOOK9910713527003321Potentiometric surface maps of the Sparta Sand ; northern Louisiana and southern Arkansas,1900, 1965, 1975, and 19803318716UNINA