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  • Catalog Record

    Taylor County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1980-1981 ... Planimetry revised from aerial photographs taken 1984 ... Map edited 1987." Alternate title: Taylor Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1987
  • Catalog Record

    Wayne County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1964-1982 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1985." Alternate title: Wayne Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Grundy County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1960-1980 ... Planimetry revised from aerial photographs taken 1978 and 1983-84 ... Map edited 1985." Alternate title: ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Henry County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1980-81 ... Planimetry revised from aerial photographs taken 1983-84 ... Map edited 1986." Alternate title: Henry Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1987
  • Catalog Record

    Guthrie County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1971-1982 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1986." Alternate title: Guthrie Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Marshall County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1960-1980 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1985." Alternate title: Marshall Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1985
  • Catalog Record

    Howard County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1965-1981 ... Planimetry revised from aerial photographs taken 1982-83 ... Map edited 1986." Alternate title: Howard Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Wapello County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1956-1980 ... Planimetry revised from aerial photographs taken 1978 ... Map edited 1986." Alternate title: Wapello Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    State of Iowa. Base map with highways and contours. Catalog Record Only

    col. map 75 x 112 cm.

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1966
  • Catalog Record

    Woodbury County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1962-1982 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1985." Alternate title: Woodbury Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Marion County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1965-1982 ... Planimetry revised from aerial photographs taken 1978 ... Map edited 1985." Alternate title: Marion Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Boone County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1965-1982 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1985." Alternate title: Boone Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1985
  • Catalog Record

    Black Hawk County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1963-1980 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1984." Alternate title: Black Hawk ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1984
  • Catalog Record

    Sioux Falls, SD and Rock Rapids, IA Sioux Falls, SD : 43096, DRG, digital raster graphic data / Catalog Record Only

    System requirements: IBM compatible PC 80386 or higher; 4 MB of RAM (8 MB recommended); 16 MB of hard drive space; Microsoft Windows 3.1 (optional); CD ROM player and Microsoft Extensions 2.0 ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1996
  • Catalog Record

    Worth County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1972 ... Planimetry revised from aerial photographs taken 1978-1980 ... Map edited 1987." Alternate title: Worth Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1987
  • Catalog Record

    Fremont County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1956-1984 ... Planimetry revised from aerial photographs taken 1982 ... Map edited 1985." Alternate title: Fremont Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986
  • Catalog Record

    Greene County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1971-1986 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1987." Alternate title: Greene Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1987
  • Catalog Record

    Hydrologic unit map--1974, State of Iowa. Catalog Record Only

    Scale 1:500,000; 1 in. equals approx. 8 miles. Relief shown by spot heights. "Lambert conformal conic projection based on standard parallels 330 and 450." "Base map drainage modified in 1974." Base map ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1976
  • Catalog Record

    Geologic map index of Iowa, Catalog Record Only

    col. map 50 x 75 cm.

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1948
  • Catalog Record

    Adams County, Iowa : 1:100 000-scale topographic map / Catalog Record Only

    Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1980-1981 ... Planimetry revised from aerial photographs taken 1983 ... Map edited 1986." Alternate title: Adams Co., ...

    • Contributor: Geological Survey (U.S.)
    • Original Format: Maps
    • Date: 1986