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  1. Title: Topographical map of the Yosemite Valley and vicinity (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced image of a map of the Yosemite Valley in California, originally created by Geographical Surveys West of the 100th Meridian in 1883. The map appears in "Geographical Surveys West of the 100th Meridian (U.S.). Topographical atlas projected to illustrate explorations and surveys west of the 100th meridian of longitude."The historic map layers in the Google Earth Rumsey Map Collection have been selected by David Rumsey from his large collection of historical maps, as well as some from other collections with which he collaborates. All the maps contain rich information about the past and represent a sampling of time periods, scales, and cartographic art, resulting in visual history stories that only old maps can tell. Each map has been georeferenced by Rumsey, thus creating unique digital map images that allow the old maps to appear in their correct places on the modern globe. Some of the maps fit perfectly in their modern spaces, while othersgenerally earlier period mapsreveal interesting geographical misconceptions of their time. Cultural features on the maps can be compared to the modern satellite views using the slider bars to adjust transparency. The result is an exploration of time as well as space, a marriage of historic cartographic masterpieces with innovative contemporary software tools.

  2. Title: Part of south western Colorado

    Contributors:

    Summary: Relief shown by hachures and spot heights.; "Atlas sheet no. 61(D)."; "Issued Jan. 10th 1878."; "Expeditions of 1873, 74, 75 & 76 under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army."; "Weyss, Lang & Herman, del." 38 x 49 centimeters Scale 1:253,440; 1 inch to 4 miles. General Map Collection

  3. Title: Map showing routes of the river and land parties engaged in exploring the Grand CaƱon of the Colorado; under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army; P.W. Hamel and L. Nell, Topographers; Weyss, Thompson & Lang del. [i.e. delineator or engraver].

    Contributors:

    Summary: Relief shown by hachures and spot heights. Prime meridian: Washington. Shows exploration routes, state borders. At lower left: "Issued Feb. 4th, 1878." "By order of the honorable, the Secretary of War, under the direction of Brig. Gen. A.A. Humphreys, Chief of Engineers, U.S. Army." Includes table of "dates of camps of river party in 1871." 1 map: 37 x 45 cm.

  4. Title: 1878 Progress map of the U.S. Geographical Surveys West of the 100th Meridian : to accompany the special report of 1st Lieut, George M. Wheeler, Corps of Engineers, U.S. Army, to Brig. Gen. A.A. Humphreys, Chief of Engineers, U.S. Army, in response to resolution of House of Representatives, March 8th, 1878

    Contributors:

    Summary: "1st Lieut. Geo. M. Wheeler, Corps of Engineers, in charge"--Margin. "Seasons of 1869, 1871, 1872, 1873, 1874, 1875, 1876, & 1877"--Margin. "By order of the honorable The Secretary of War, under the direction of Brig Gen. A.A. Humphreys, Chief of Engieers U.S. Army"--Margin.

  5. Title: S.W. Colorado, San Juan mining region : atlas sheet no. 61(C)

    Contributors:

    Summary: Sheet no. 61(C) from Wheeler's Geographical exploration and surveys west of the 100th meridian topographical atlas.; Relief shown by contours, hachures, and spot heights.; Expeditions of 1874 and 1875 under the command of 1st Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army--Margin.; 1st Lieut. W.L. Marshall, Corps of Engineers, U.S. Army, Executive Office and Field Astronomer--Margin.; Louis Nell, J.C. Spiller, topographical assistants--Margin.; Louis Nell, Del.--Margin. 37 x 49 centimeters, on sheet 49 x 62 centimeters Scale 1:126,720; 1 inch to 2 miles General Map Collection

  6. Title: Parts of eastern and southeastern Arizona, western and southwestern New Mexico

    Contributors:

    Summary: Relief shown by hachures and spot heights.; "Atlas sheet no. 83."; "Issued Mar. 18th 1876."; "Expeditions of 1871 & 1873 under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army."; "Weyss, Herman & Lang, del." 37 x 52 centimeters Scale 1:506,880; 1 inch to 8 miles. General Map Collection

  7. Title: Map showing the general topographical features of the territory of the United States west of the Mississippi River : to accompany Atlas of Geographical Surveys West of the 100th Meridian

    Contributors:

    Summary: "1st Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army, in charge." "Seasons of 1869, 1871, 1872 & 1873." "Reduced from the Western Territory Map as a basis with certain additions."

  8. Title: Skeleton map of the territory of the United States west of the Mississippi River : exhibiting the relations existing between lines and areas of explorations & surveys conducted under the auspices of the War Dept., giving the area of the public domain lying west of the 100th meridian of longitude, with an index illustration of a series of atlas maps proposed to be constructed on a scale of 1 inch to 8 mi.

    Contributors:

    Summary: "Prepared to accompany the" Preliminary & progress report" concerning the Expedition of 1872 & 1873." Shows routes of exploration; areas survey by Wheeler's expeditions of 1869, 1871, and 1872; areas encompassed by the Survey of the 40th parallel; etc.

  9. Title: Global Dams

    Contributors:

    Summary: Global Dams is a point theme representing dams Worldwide. A variety of attribute information is provided, including names, type classifications, state-level information (1st level administrative division) and country data. This dataset is provided in both .txt files and a ESRI Geodatabase format.

  10. Title: Parts of western Wyoming, southeastern Idaho and northeastern Utah

    Contributors:

    Summary: Shows geologic formations. "Surveyed in 1877." Relief shown by contours and spot heights. To accompany the Survey's 12th annual report (1878). "56"--Lower right margin.

  11. Title: Parts of western Wyoming and southeastern Idaho

    Contributors:

    Summary: "Surveyed in 1877 & '78." Relief shown by contours and spot heights. To accompany the Survey's 12th annual report (1878). "45"--Lower right margin. "9"--Upper left margin.

  12. Title: Part of Central Wyoming F.V. Hayden, U.S. Geologist in charge.

    Contributors:

    Summary: Shows drainage, road, etc. Relief by shown by contours (interval 200') and spot heights. From: its Report, 12th, 1878, v. 12:2, atlas. 1 map; 56 x 83 cm

  13. Title: Green River from the Union Pacific Rail Road to the mouth of White River. 1873.

    Contributors:

    Summary: Scale [1:253,440]. 4 miles = 1 in. From Powell's Exploration of the Colorado River ... l875. Relief shown by contours. Department of the Interior, U.S. Geological and Geographical Survey of the Territories, Second Division, J.W. Powell in charge.

  14. Title: Green River from the Union Pacific Rail Road to the mouth of White River, 1873

    Contributors:

    Summary: Relief shown by contours. Title in upper right margin: Geology of the Unita Mountains.

  15. Title: USA (Core Based Statistical Areas CBSA, 2003)

    • Polygon data
    • 2008
    Contributors:

    Summary: The United States Core Based Statistical Areas (CBSA) Boundaries data set contains the boundaries for metropolitan and micropolitan statistical areas in the United States. The data set contains information on location, identification, and size. The database includes metropolitan and micropolitan boundaries within all 50 states, the District of Columbia, and Puerto Rico.Combined statistical areas are groupings of adjacent metropolitan and/or micropolitan statistical areas that have social and economic ties as measured by commuting to work, but at lower levels than are found among counties within individual metropolitan and micropolitan statistical areas. Combined statistical areas can be characterized as representing larger regions that reflect broader social and economic interactions, such as wholesaling, commodity distribution, and weekend recreation activities, and are likely to be of considerable interest to regional authorities and the private sector. Each metropolitan or micropolitan statistical area consists of a core area containing a substantial population nucleus, together with adjacent communities having a high degree of economic and social integration with that core. Metropolitan statistical areas contain at least one U.S. Census Bureau-defined urbanized area of 50,000 or more population; micropolitan statistical areas contain at least one Census Bureau-defined urban cluster of at least 10,000 and less than 50,000 population. If specified criteria are met, a metropolitan statistical area containing a single urbanized area with a population of 2.5 million or more may be subdivided into metropolitan divisions, which function as distinct social and economic areas within the larger metropolitan statistical area.

  16. Title: USA (109th Congressional Districts, 2005)

    • Polygon data
    • 2005
    Contributors:

    Summary: The 109th Congressional District Boundaries data set contains geographic information for the political entities of the 109th Congressional districts.

  17. Title: USA (108th Congressional Districts, 2003)

    • Polygon data
    • 2003
    Contributors:

    Summary: The 108th Congressional District Boundaries data set contains geographic information for the political entities of the 108th Congressional districts.

  18. Title: USA (107th Congressional Districts, 2001)

    • Polygon data
    • 2001
    Contributors:

    Summary: The 107th Congressional District Boundaries data set contains geographic information for the political entities of the 107th Congressional districts.

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