Digital hydrogeologic surface of the Lower Claiborne Confining Unit in Alabama, Arkansas,
Louisiana, Mississippi. The hydrogeologic unit dataset contains 414 rows and 394 columns
representing 1-mile grid spacing. In general, limitations of data interpolation included areas
of sparse geophysical log control points, log datums not clearly defined for some logs,
unknown exact extent of each hydrogeologic unit in subcrop, interpolation limitations,
and values averaged over 1-mile grid spacing.