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31 results returned

  1. Title: Simple Bouguer gravity map of Minnnesota and northwestern Wisconsin, M-10

    Contributors:

    Summary: Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between an observed gravity measurement and value predicted from a generalized earth model), shown as contour lines (isolines) of equal value, Minnesota and northwestern Wisconsin, scale 1:1,000,000.

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  2. Title: State of Washington; compiled from the official records of the General Land Office and other sources under the direction of chief of Drafting Division, G.L.O.; revised and drawn by Daniel O'Hare; compiled by Robt. H. Morton.

    Contributors:

    Summary: Relief shown by shading and spot heights. Also shows public lands. "The Friedenwald Co. Photo-Lith. Balto." Longitude "West from Washington." 1 map: col.; 58 x 87 cm

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  3. Title: State of Mississippi : compiled from the official records of the General Land Office and other sources, under supervision of A.F. Dinsmore, Principal Draughtsman G.L.O.

    Contributors:

    Summary: Prime meridians: Greenwich, Washington.; Relief shown by hachures. 81 x 51 centimeters Scale approximately 1:750,000 General Map Collection

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  4. Title: Washington Territory; compiled and drawn by Robt. H. Morton.

    Contributors:

    Summary: Relief shown by hachures and spot heights. "Compiled from the official records of the General land Office and other sources ..." Prime meridians: Greenwich and Washington. 1 map: col.; 54 x 70 cm.

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  5. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1975).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  6. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1974).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  7. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Blue line print. 'Base modified from Indiana Department of Conservation, Geological Survey. Base map of portion of western Indiana, 1951.' Includes 'Outline map of Indiana showing location of map area', 'Township diagram', and index of 'Active coal mines in Indiana (as of February 1, 1970).' Scale approximately 1:325,000. Compiled by Harold C. Hutchison.

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  8. Title: Map of southwestern Indiana showing locations of active coal mines

    Contributors:

    Summary: Scale approximately 1:380,000.

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  9. Title: Distribution, structure, and mined areas of coals in Fountain and Warren Counties, and the northernmost part of Vermillion County, Indiana

    Contributors:

    Summary: Preliminary coal map no. 9--Margin.; Includes 1 ancillary map, 1 diagram showing township enumeration, 1 index map, 1 stratigraphic column, and 1 cross section.; Verso shows 5 tables including indexed list of mines keyed to map. Scales differ

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  10. Title: Distribution, structure, and mined areas of coals in Spencer County, Indiana

    Contributors:

    Summary: Preliminary coal map no. 8--Margin.; Includes 2 geologic cross sections, location map, geologic column, index of mines, tables, and diagram of township sections. Scale approximately 1:126,720. Approximately 1 inch to 2 miles.

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  11. Title: Pattern of railway facilities in Chicago and vicinity /Harold M. Mayer.

    Contributors:

    Summary: Figure 3. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:130,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  12. Title: Functional pattern of the railways in Metropolitan Chicago /Harold M. Mayer.

    Contributors:

    Summary: Figure 2. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:580,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  13. Title: Principal railway facilities in central Chicago /[Harold M. Mayer]; base map by Chicago Land Use Survey.

    Contributors:

    Summary: Figure 6. Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:18,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  14. Title: Passenger train movement in Metropolitan Chicago /Harold M. Mayer.

    Contributors:

    Summary: Figures in circles represent the number of daily scheduled weekday passenger trains in both directions as shown in timetables in effect during January 1940. "Figure 4." Also appeared in author's Ph. D. dissertation (University of Chicago, 1943): The railway pattern of metropolitan Chicago.; Scale [ca. 1:230,000]; Master and use copy. Digital master created according to Benchmark for Faithful Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.

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  15. Title: European and North American Railway, New England and Eastern Canada, 1850 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Map of the European and North American Railway : showing its connection with the railways of the United States & Canada, [by] A.C. Morton, engineer. It was published in 1850 by Bowen & Co. Scale [ca. 1:1,625,000]. Covers New England, eastern New York, and the Maritime Provinces. The image inside the map neatline is georeferenced to the surface of the earth and fit to the USA Contiguous Albers Equal Area Conic projection (Meters). 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, or other information associated with the principal map. This map shows features such as completed, in progress, and proposed railroads, selected towns, drainage, state boundaries, and more. Includes inset: Map showing the plan for shortening the transit between New York & London. This layer is part of a selection of digitally scanned and georeferenced historic maps of New England from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

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  16. Title: Oil and gas pipe lines in Ohio, 1973

    Contributors:

    Summary: Scale approximately 1:510,000. "This map is a revision of the 1968 publication ..." Includes directory of oil pipe line companies and index to gas pipe line companies. "Ohio coordinate system 100,000-foot grid lines from U.S. Coast and Geodetic Survey data." Shows gas and liquid petroleum storage areas, points of distribution, compressor stations, refineries, pumping stations, propane plants, and major control points. Compiled by Harold J. Flint. Cartographic drafting by James E. Hairston. "Base map by United States Dept. of the Interior, Geological Survey."

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  17. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 1

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of northeastern Minnesota, scale 1 inch = about 15 miles.

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  18. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 5

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Granite Falls area, Minnesota, showing locations of dated samples, scale 1 inch = about 1/4 mile.

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  19. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 4

    Contributors:

    Summary: Map of western part of the Lake Superior region, Minnesota, showing location of samples that were age-dated by radioactive isotope methods, scale 1 inch = about 40 miles.

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  20. Title: Precambrian geology and geochronology of Minnesota, Bulletin 41, Plate 2

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of east-central Minnesota, scale 1 inch = about 10 miles.

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