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1,187 results returned

  1. Title: Public Transit Map, Massachusetts, ca. 2000 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Official public transit map :[Boston and vicinity, Massachusetts] : Massachusetts Bay Transportation Authority / this map was prepared for the MBTA by the Central Transportation Planning Staff ; cartography by Kenneth A. Dumas, CTPS ; production by Transportation Creative Services. It was published by Massachusetts Bay Transportation Authority ca. 2000. Scale 1:21,120. 1 in. = 1/3 of a mile. 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, railroads, drainage, cities and other human settlements, territorial boundaries, shoreline features, and more. Includes also general information on bus, subway, rail, and boat transportation, service frequencies in minutes for bus routes and subway lines, inset of 'MBTA commuter rail system,' inset showing transportational services for Lynn, Salem, Beverly, and vicinity, 18 insets showing transportational services for locales at or near stations, advertisement, manuscript annotations and color illustrations. 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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  2. Title: Mapping Interstate Territorial Conflict, 1947-2000 (v2)

    Contributors:

    Summary: This polygon shapefile represents areas that were the subject of interstate territorial disputes between 1947 and 2000. The disputed areas referenced in this map were identified in 'The Democratic Peace and Territorial Conflict in the Twentieth Century' (Huth and Allee, 2002.) Each disputed region is rendered as a polygon encompassing the area of overlapping claims. Each region has a variable 'homeland,' indicating whether the area was ever part of a dispute involving homeland territory for both states. Each dispute is also assigned a precision code, from 1 to 5, where 1 represents the highest level of certainty and 5 represents the lowest level. The vast majority of claims represented in this dataset were bounded with relatively high precision. Research related to these data is described in 'Mapping Interstate Territorial Conflict: A New Data Set and Application.' An earlier version of this shapefile and other related information including annual data for dyads and direct dyads involved in disputes, as well as a file of the territorial disputes identified by Huth and Allee, can be found at: http://purl.stanford.edu/zc000fq4044. Schultz, Kenneth A. (2016). Mapping Interstate Territorial Conflict, 1947-2000 (v2). Stanford Digital Repository. Available at: http://purl.stanford.edu/jn766dx6840. Schultz, Kenneth A. "Mapping Interstate Territorial Conflict: A New Data Set and Applications." The Journal of Conflict Resolution (2015). Available at: http://dx.doi.org/10.1177/0022002715620470 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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  3. Title: Paris, France, 1867 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Paris 1867, dresse par Ed. Dumas-Vorzet, geographe, grave sur acier, le trait et la lettre par Langevin. It was published by Librairie du Petit Journal in 1867. Scale 1:12,800. Map in French.The image inside the map neatline is georeferenced to the surface of the earth and fit to the European Datum 1950, Universal Transverse Mercator (UTM) Zone 31N projected coordinate system. 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, railroads, drainage, selected buildings, ground cover, district boundaries, and more. Includes indexes.This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

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  4. Title: Quaternary geology-Traverse-Grant area, west-central Minnestoa, RHA-6, Part A, Plate 2

    Contributors:

    Summary: Quaternary (glacial and stream sediment) stratigraphy of the Traverse-Grant area, west-central Minnesota, scale 1:200,000.

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  5. Title: Quaternary geology of the Crookston 30' x 60' quadrangle, northwest Minnesota Minnesota, M-173, Plate 1

    Contributors:

    Summary: Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), (lithogenetic or material type) map of the Crookston quadrangle, scale 1:100,000.

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  6. Title: Quaternary geology of the Crookston 30' x 60' quadrangle, northwest Minnesota Minnesota, M-173, Plate 2

    Contributors:

    Summary: Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface) and type of material, of the Crookston quadrangle, scale 1:100,000.

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  7. Title: Quaternary geology-Traverse-Grant area, west-central Minnestoa, RHA-6, Part A, Plate 1

    Contributors:

    Summary: Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of the Traverse-Grant area, west-central Minnesota, scale 1:200,000.

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  8. Title: Geologic atlas of Pope County, Minnesota, C-15, Part A, Plate 1, Data Base

    Contributors:

    Summary: Map showing locations of water wells, soil borings, outcrops and cuttings samples collected during water well drilling. Distribution and sources of primary information tthat guide the geologic interpretations used to make the geologic maps in the series, scale 1:100,000, Pope County.

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  9. Title: Geologic atlas of Pope County, Minnesota, C-15, Part A, Plate 2, Bedrock Geology, Bedrock Topography, and Depth to Bedrock

    Contributors:

    Summary: Maps showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments), elevation of the bedrock surface (bedrock topography) and thickness of unconsolidated (glacial and stream sediments) material over the bedrock surface, scale 1:200,000, Pope County.

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  10. Title: Geologic atlas of Pope County, Minnesota, C-15, Part A, Plate 5, Mineral Endowment

    Contributors:

    Summary: Maps showing locations and types of bedrock aggregate and sand and gravel resources, scale 1:100,000, Pope County.

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  11. Title: Geologic atlas of Pope County, Minnesota, C-15, Part A, Plate 3, Surficial Geology

    Contributors:

    Summary: Map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), scale 1:100,000, Pope County.

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  12. Title: Seismic Hazard Map for the United States

    Contributors:

    Summary: This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will reach a certain level. This map layer shows peak horizontal ground acceleration (the fastest measured change in speed, for a particle at ground level that is moving horizontally due to an earthquake) with a 10% probability of exceedance in 50 years. Values are given in %g, where g is acceleration due to gravity, or 9.8 meters/second^2. The lines of equal hazard, which are the lines between the polygons, were determined by interpolating from a grid of equally spaced points in latitude and longitude. Each point was weighted based on the seismic hazard at that location. The grid spacing is 0.1 degrees for Alaska, 0.05 degrees for the conterminous United States, and 0.02 degrees for Hawaii. This layer is part of the 1997-2014 edition National Atlas of the United States. This map summarizes the quantitative information, available from geologic and geophysical sources, about seismic ground motion hazard in the United States. The data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the U.S. Geological Survey or the National Atlas of the United States in the use of these data. National Atlas of the United States. (2012). Seismic Hazard Map for the United States. National Atlas of the United States. Available at: http://purl.stanford.edu/rm034qp5477. This map layer was prepared by combining spatially-smoothed historic seismicity information with information from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear- wave velocity of 760 meters/second in the top 30 meters corresponding to the boundary between National Earthquake Hazards Reduction Program (NEHRP) site classes B and C. For more information about the USGS National Seismic Hazard Maps, please visit http://earthquake.usgs.gov/hazards/index.php. A description of how the underlying geologic and geophysical data were prepared as well as the methodology used in calculating seismic hazard for a geographic location can be found in the following reports: Petersen, M.D., Frankel, A.D., Harmsen, S.C., Mueller, C.S., Haller, K.M., Wheeler, R.L., Wesson, R.L., Zeng, Yuehua, Boyd, O.S., Perkins, D.M., Luco, Nicolas, Field, E.H., Wills, C.J., and Rukstales, K.S., 2008, Documentation for the 2008 Update of the United States National Seismic Hazard Maps: U.S. Geological Survey Open-File Report 2008-1128, 61 p. Klein, F.W., A.D. Frankel, C.S. Mueller, R.L. Wesson and P.G. Okubo, 2001, Seismic Hazard in Hawaii: high rate of large earthquakes and probabilistic ground motion maps, Bulletin of the Seismological Society of America, v. 91, pp. 479-498. Wesson, Robert L., Boyd, Oliver S., Mueller, Charles S., Bufe, Charles G., Frankel, Arthur D., Petersen, Mark D., 2007, Revision of time-Independent probabilistic seismic hazard maps for Alaska: U.S. Geological Survey Open-File Report 2007-1043, 33p. 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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  13. Title: Geologic atlas of Pope County, Minnesota, C-15, Part A, Plate 4, Quaternary Stratigraphy

    Contributors:

    Summary: Cross sections showing the subsurface stratigraphy and unit characteristics of unconsolidated (glacial and stream sediments) overlying the bedrock, scale 1:200,000, Pope County.

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  14. Title: Quaternary geology-Otter Tail area, west-central Minnesota, RHA-5, Part A, Plate 2

    Contributors:

    Summary: Quaternary (glacial and stream sediment) stratigraphy of the upper Minnesota River basin, Minnesota, scale 1:200,000.

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  15. Title: Quaternary geology-Otter Tail area, west-central Minnesota, RHA-5, Part A, Plate 1

    Contributors:

    Summary: Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of the Otter Tail area, west-central Minnesota, scale 1:200,000.

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  16. Title: Quaternary geology-Southern Red River Valley, Minnesota, RHA-3, Part A, Plate 1

    Contributors:

    Summary: Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution and type of materials at the land surface), of southern Red River Valley, Minnesota, scale 1:200,000.

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  17. Title: Quaternary geology-Southern Red River Valley, Minnesota, RHA-3, Part A, Plate 2

    Contributors:

    Summary: Quaternary (glacial and stream sediment) stratigraphy of southern Red River Valley, Minnesota, scale 1:200,000.

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  18. Title: Geologic map of the Mesabi district, Minnesota

    Contributors:

    Summary: Relief shown by contours.; "Corrected to January 1, 1911."; "Monograph LII, plate VIII"--Upper right corner. 37 x 271 centimeters Scale 1:62,500 General Map Collection

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  19. Title: Map of central Minnesota, including Cuyuna district

    Contributors:

    Summary: Cover title: Physical geography.; At head of title: Mitchell's school geographies, fifth book of the series. 15 x 21 centimeters Scale 1:1,250,000 General Map Collection

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  20. Title: Geological map of the Mesabi district, Minnesota

    Contributors:

    Summary: Relief indicated by contours.; "Monograph No. 43 Pl. II."; Includes 3 geological sections. 46 x 259 centimeters Scale approximately 1:63,360 General Map Collection

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