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  2. Contour line - Wikipedia

    en.wikipedia.org/wiki/Contour_line

    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] The contour interval of a contour map is the difference in elevation between successive contour lines.

  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. 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 .

  5. Thematic map - Wikipedia

    en.wikipedia.org/wiki/Thematic_map

    Isarithmic maps, also known as contour maps or isoline maps, depict continuous quantitative fields (sometimes conceptualized as "statistical surfaces" by cartographers), such as precipitation or elevation by partitioning space into regions, each containing a consistent range of values of the field.

  6. Terrain cartography - Wikipedia

    en.wikipedia.org/wiki/Terrain_cartography

    USGS topographic map of Stowe, Vermont with contour lines at 20-foot intervals. Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed.

  7. Spur (topography) - Wikipedia

    en.wikipedia.org/wiki/Spur_(topography)

    A spur in the Tatra Mountains. A spur is a lateral ridge or tongue of land descending from a hill, mountain or main crest of a ridge. [1] [2] It can also be defined as another hill or mountain range which projects in a lateral direction from a main hill or mountain range.

  8. Isopach map - Wikipedia

    en.wikipedia.org/wiki/Isopach_map

    Isopachs are contour lines of equal thickness over an area. Isopach maps are utilized in hydrographic survey, stratigraphy, sedimentology, structural geology, petroleum geology and volcanology. An isopach map is similar to an isochore map, but these terms actually describe different methods of displaying thickness variations within a layer. [1] [2]

  9. Contour maps - Wikipedia

    en.wikipedia.org/?title=Contour_maps&redirect=no

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