TY - GEN CN - I 19.76: CY - Denver, Colo. : ID - 195203 KW - Groundwater KW - Aquifers N1 - Title varies slightly. N1 - Issues for 19 - Sept. 1986 contain 1 map; beginning with May 1987 issues contain 2 maps, 40 x 36 cm. and 25 x 31 cm. on sheet 91 x 61 cm. N1 - Components: figure 1. Composite potentiometric surface of the intermediate aquifer system -- figure 2. Potentiometric surface of the Tamiami--upper Hawthorn aquifer. N1 - Potentiometric contours. N1 - Includes text, bibliographical references, index map, and graphs. N1 - Coordinates for component maps based on May 1987. N1 - Description based on: Sept. 1986. PB - The Survey : PB - U.S. Geological Survey, Books and Open-File Reports [Section, distributor, PP - Denver, Colo. : T1 - Potentiometric surface of the intermediate aquifer system, west-central Florida TI - Potentiometric surface of the intermediate aquifer system, west-central Florida ER -