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  2. Magnetic declination - Wikipedia

    en.wikipedia.org/wiki/Magnetic_declination

    The same diagram may show the angle of grid north (the direction of the map's north–south grid lines), which may differ from true north. On the topographic maps of the U.S. Geological Survey (USGS), for example, a diagram shows the relationship between magnetic north in the area concerned (with an arrow marked "MN") and true north (a vertical ...

  3. True north - Wikipedia

    en.wikipedia.org/wiki/True_north

    Maps issued by the United Kingdom Ordnance Survey contain a diagram showing the difference between true north, grid north, and magnetic north at a point on the sheet; the edges of the map are likely to follow grid directions rather than true, and the map will thus be truly rectangular/square. [citation needed]

  4. Wikipedia:Obtaining geographic coordinates - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Obtaining...

    Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude for the location. User interface in English language. Mapcoordinates: Map to coordinates: Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude and Elevation for the location. User interface in German language. NASA World Wind ...

  5. List of satellite map images with missing or unclear data

    en.wikipedia.org/wiki/List_of_satellite_map...

    Blurred intentionally on Bing Maps. [15] Rendered in lower resolution on Google Maps and Mapquest. Heliport [16] in El Ejido: Spain: Square blurred on Google and Bing. Visible e.g. in HERE WeGo and Yandex.

  6. Cardinal direction - Wikipedia

    en.wikipedia.org/wiki/Cardinal_direction

    Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.

  7. Direction determination - Wikipedia

    en.wikipedia.org/wiki/Direction_determination

    Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.

  8. A Camper Was Playing With Google Maps—and Stumbled ... - AOL

    www.aol.com/camper-playing-google-maps-stumbled...

    A man planning a camping trip using Google Maps ran across a uniquely curved spherical pit in Quebec. It may be an ancient asteroid impact crater. ... roughly 60 miles north of Magpie, Quebec. The ...

  9. Compass - Wikipedia

    en.wikipedia.org/wiki/Compass

    In navigation, directions on maps are usually expressed with reference to geographical or true north, the direction toward the Geographical North Pole, the rotation axis of the Earth. Depending on where the compass is located on the surface of the Earth the angle between true north and magnetic north , called magnetic declination can vary ...