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42 results returned

  1. Title: Geologic map of the Long Island Lake quadrangle, Cook County, Minnesota, M-46

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Long Island Lake quadrangle, scale 1:24,000.

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  2. Title: Shaded relief aeromagnetic anomaly map of northeastern and east-central Minnesota, M-53

    Contributors:

    Summary: Aeromagnetic anomaly map, (relative to the earth's magnetic field, interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth, shaded-relief (psuedo 3d), northeastern and east-central Minnesota, scale 1:1,000,000.

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  3. Title: Newbury, West Newbury, & Newburyport, Massachusetts, 1830 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Map of the original town of Newbury, now divided into Newbury, Newburyport, and West Newbury, surveyed & drawn by Philan[de]r Anderson for Moses Petangell in 1830. It was published by Pendleton's Lithography in 1830. Scale [1:19,800]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Massachusetts State Plane Coordinate System, Mainland Zone (in Feet) (Fipszone 2001). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, drainage, public buildings, schools, churches, cemeteries, industry locations (e.g. mills, factories, mines, etc.), private buildings with names of property owners, town boundaries and more. Relief shown by shading.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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  4. Title: International Bathymetric Chart of the Arctic Ocean, 500-Meter Resolution GeoTIFF (Version 3.0)

    Contributors:

    Summary: This layer is a georeferenced image (GeoTIFF) of a digital bathymetric model (DBM) compiled with all multibeam, dense single beam and land data added at 500 x 500 meters resolution. The original (DBM) was compiled with all multibeam, dense single beam and land data added at 500 x 500 m resolution in a final step using the remove-restore method. Data were compiled from several multibeam cruises in the region dating from 1994 to 2011. The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64° North, for use by mapmakers, researchers, institutions, and others whose work requires a detailed and accurate knowledge of the depth and the shape of the Arctic seabed. Jakobsson, M., L. A. Mayer, B. Coakley, J. A. Dowdeswell, S. Forbes, B. Fridman, H. Hodnesdal, R. Noormets, R. Pedersen, M. Rebesco, H.-W. Schenke, Y. Zarayskaya A, D. Accettella, A. Armstrong, R. M. Anderson, P. Bienhoff, A. Camerlenghi, I. Church, M. Edwards, J. V. Gardner, J. K. Hall, B. Hell, O. B. Hestvik, Y. Kristoffersen, C. Marcussen, R. Mohammad, D. Mosher, S. V. Nghiem, M. T. Pedrosa, P. G. Travaglini, and P. Weatherall, The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophysical Research Letters, doi:10.1029/2012GL052219. [Auxiliary Material] This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  5. Title: International Bathymetric Chart of the Arctic Ocean, 30 Arc-Second Resolution GeoTIFF (Version 3.0)

    Contributors:

    Summary: This layer is a georeferenced raster image (GeoTIFF) of a digital bathymetric model (DBM) of the Arctic Ocean compiled with all multibeam, dense single beam, and land data added at a resolution of 30 x 30 arc seconds. This is a reprojected version (WGS84) of the 500 meter resolution data layer. The original (DBM) was compiled with all multibeam, dense single beam and land data added at 500 x 500 m resolution in a final step using the remove-restore method. Data were compiled from several multibeam cruises in the region dating from 1994 to 2011. The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64° North, for use by mapmakers, researchers, institutions, and others whose work requires a detailed and accurate knowledge of the depth and the shape of the Arctic seabed. Jakobsson, M., L. A. Mayer, B. Coakley, J. A. Dowdeswell, S. Forbes, B. Fridman, H. Hodnesdal, R. Noormets, R. Pedersen, M. Rebesco, H.-W. Schenke, Y. Zarayskaya A, D. Accettella, A. Armstrong, R. M. Anderson, P. Bienhoff, A. Camerlenghi, I. Church, M. Edwards, J. V. Gardner, J. K. Hall, B. Hell, O. B. Hestvik, Y. Kristoffersen, C. Marcussen, R. Mohammad, D. Mosher, S. V. Nghiem, M. T. Pedrosa, P. G. Travaglini, and P. Weatherall, The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophysical Research Letters, doi: 10.1029/2012GL052219. [Auxiliary Material]

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  6. Title: North end map of Porter County Indiana

    Contributors:

    Summary: Cadastral map showing landowners. 'March 1927.' Scale approximately 1:12,000. Not '1 inch = 1000 feet.' Drawn by K. Russell Anderson.

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  7. Title: Atlas of Black Hawk County and The World, 1926

    Contributors:

    Summary: (Anderson Publishing Co., 1926, Atlas of Black Hawk County and The World); 1 atlas: b&w.; 31 X 42 cm. No commercial reproduction or distribution of this file is permitted without permission. Iowa State University Library (Ames) University of Iowa Libraries Map Collection

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  8. Title: Atlas of Plymouth County, Iowa, 1921, 1921

    Contributors:

    Summary: unknown Material in the public domain. No restrictions on use. University of Iowa. Libraries. Map Collection

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  9. Title: Atlas of Benton County, Iowa, 1917

    Contributors:

    Summary: Material in the public domain. No restrictions on use. University of Iowa. Libraries. Map Collection

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  10. Title: Atlas of Sioux County, Iowa, 1913

    Contributors:

    Summary: 1 1/2 in. to the mile Material in the public domain. No restrictions on use. University of Iowa. Libraries. Map Collection

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  11. Title: Survey of the military road from the town of Monroe, River Raisin to the Miami River; [by] Col. Anderson, topl. engrs.

    Contributors:

    Summary: Positive photocopy of ms. in the National Archives. Indicates mileage, houses and some names of owners, lot lines, drainage, some vegetation, some stylized relief from Monroe to south of Perrysburg along the Maumee River. map on 3 sheets; 18 x 25 1/2 in.

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  12. Title: Soil Expansive

    Contributors:

    Summary: Expansive Soils are defined as Maximum Measured Shrink-Swell Potential and were grouped by consultant Sean Wilson, geologist. Data originates from the NRCS Soils data known within the County of Marin GIS database as Soils. NRCS soils were downloaded from ftp://ftp.tfw.nrcs.usda.gov/pub/ssurgo/online98/data/ca041/ . This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

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  13. Title: Geologic atlas of Stearns County, Minnesota, C-10, Part B, Plate 10, Sensitivity of Ground-Water Systems to Pollution

    Contributors:

    Summary: Map showing the susceptibility of the ground water system (bedrock and unconsolidated sediments) to contamination, including the age of the water as determined from radioactive isotopes in the water, scale 1:100,000, Stearns County.

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  14. Title: Geologic atlas of Stearns County, Minnesota, C-10, Part B, Plate 9, Hydrogeology of the Quaternary Confined Aquifers and Bedrock Aquifers

    Contributors:

    Summary: Maps showing ground water resources and aquifer characteristics of confined Quaternary aquifers (aquifer surrounded by water impermeable material, usually clayey glacial till) and bedrock aquifers, scale 1:100,000, Stearns County.

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  15. Title: Geologic atlas of Stearns County, Minnesota, C-10, Part B, Plate 8, Hydrogeology of the Quaternary Water-Table System

    Contributors:

    Summary: Maps showing ground water resources and aquifer characteristics in the bedrock and unconsolidated sediments (glacial and stream sediments) overlying the bedrock and interactions between surface and bedrock aquifers, scale 1:100,000, Stearns County.

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  16. Title: Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 6, Bedrock Hydrogeology

    Contributors:

    Summary: Maps showing where and how much ground water may be present and aquifer characteristics of the bedrock geologic units, scale 1:100,000, Fillmore County.

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  17. Title: Geologic atlas of Fillmore County, Minnesota, C-8, Part B, Plate 7, Pollution Sensitivity

    Contributors:

    Summary: Map showing the susceptibility of the ground water system (bedrock and unconsolidated sediment aquifers) to contamination, scale 1:100,000, Fillmore County.

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  18. Title: Shorter contributions to the geology of the Sioux Quartzite (early Proterozoic), southwestern Minnesota, RI-32, Plate 1

    Contributors:

    Summary: Generalized interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the North Limb, Cottonwood County Basin, Jeffers-Comfrey area, Minnesota, scale 1:48,000.

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  19. Title: Geologic map of the Gunflint Lake quadrangle, Cook County, Minnesota, M-42

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Gunflint Lake quadrangle, scale 1:24,000.

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  20. Title: Geologic map of the Hungry Jack Lake quadrangle, Cook County, Minnesota, M-39

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Hungry Jack Lake quadrangle, scale 1:24,000.

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