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  2. Earth Point - Wikipedia

    en.wikipedia.org/wiki/Earth_Point

    Properties are located with roof-top accuracy without relying on geocoding. Property lines are drawn. Properties are defined by ESRI shape files produced by county assessor offices. These files are converted by Earth Point for use on Google Earth and Google Maps. [3] Property for Sale - maps MLS listings in Ada and Canyon counties, Idaho ...

  3. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.

  4. Contour line - Wikipedia

    en.wikipedia.org/wiki/Contour_line

    In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. [3] A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. [4]

  5. Terrain cartography - Wikipedia

    en.wikipedia.org/wiki/Terrain_cartography

    Siegfried map of Bernina Pass (1877) with black, blue and brown contour lines at 30-meter intervals. On maps produced by Swisstopo, the color of the contour lines is used to indicate the type of ground: black for bare rock and scree, blue for ice and underwater contours, and brown for earth-covered ground. [4]

  6. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    A topographic map of Stowe, Vermont with contour lines This false-color satellite image illustrates topography of the urban core of the New York metropolitan area, with Manhattan at its center. Topography is the study of the forms and features of land surfaces .

  7. Google Maps just became much more accurate (and colorful)

    www.aol.com/google-maps-just-became-much...

    Google is today releasing an update to Maps that helps it better reflect actual environments. The update will show natural features closer to how they appear on satellite imagery; parks will be ...

  8. Orthophoto - Wikipedia

    en.wikipedia.org/wiki/Orthophoto

    Google Earth images are of this type. The document (digital or paper) representing an orthophotomosaic with additional marginal information like a title, north arrow, scale bar and cartographical information is called an orthophotomap or image map. Often these maps show additional point, line or polygon layers (like a traditional map) on top of ...

  9. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    Lines of constant bearing (rhumb lines) are straight, aiding navigation. Areas inflate with latitude, becoming so extreme that the map cannot show the poles. 2005 Web Mercator: Cylindrical Compromise Google: Variant of Mercator that ignores Earth's ellipticity for fast calculation, and clips latitudes to ~85.05° for square presentation. De ...