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  2. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods. Traditional definitions require a topographic map to show both ...

  3. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief, but also natural, artificial ...

  4. United States Geological Survey - Wikipedia

    en.wikipedia.org/wiki/United_States_Geological...

    United States Geological Survey (USGS) / 38.9470; -77.3675. The United States Geological Survey ( USGS ), founded as the Geological Survey, is an agency of the United States government whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United ...

  5. 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. Terrain or relief is an essential aspect of physical geography, and as such its portrayal ...

  6. 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. [5] The gradient of the function is always perpendicular to the contour ...

  7. National Geographic TOPO! maps find their way to Magellan ...

    www.engadget.com/2012-05-09-national-geographic...

    SANTA CLARA, CA – May 8, 2012 – Magellan, a leader of innovative GPS devices for vehicles, outdoor and mobile navigation, today announced the availability of National Geographic's TOPO!, the ...

  8. Geography of Japan - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Japan

    A topographic map of Japan. About 73% of Japan is mountainous, [22] with a mountain range running through each of the main islands. Japan's highest mountain is Mount Fuji, with an elevation of 3,776 m (12,388 ft). Japan's forest cover rate is 68.55% since the mountains are heavily forested.

  9. Apple revamps watchOS 10 with widgets, topographic maps ...

    techcrunch.com/2023/06/05/apple-revamps-watchos...

    Apple Maps will gain new topographic maps with trailheads, contour lines, hill shading, elevation gains, and more, starting in the U.S. You’ll also be able to search to discover nearby trails ...

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