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  2. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    A topographic survey is typically based upon a systematic observation and published as a map series, made up of two or more map sheets that combine to form the whole map. A topographic map series uses a common specification that includes the range of cartographic symbols employed, as well as a standard geodetic framework that defines the map ...

  3. Wikipedia : WikiProject Maps/Conventions/Topographic maps

    en.wikipedia.org/.../Conventions/Topographic_maps

    Topographic maps, displaying an area's relief, de facto explain many other things such as human occupation, cultivated areas, kingdoms borders, exchanges ways, etc. If you create a topographic map, note that these colorimetric values are indicatives.

  4. Wikipedia:WikiProject Maps/Source materials - Wikipedia

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

    Every USGS topographic map available for free download from the Internet Archive. OpenStreetMap - CC-BY-SA 2.0 vector map data collected by GPS; The Map Library - Maps for Central America and Africa. Tag with commons:Template:PD-MapLibrary (talk, backlinks, edit) GinkgoMaps - Free Digital Maps published under the CC-by Licence

  5. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    Online collection of all digital USGS 1:24K scale topographic maps (as well as various other GIS data) covering the United States, available as a free download. NPScape United States Department of the Interior National Park Service NPScape is a landscape dynamics monitoring project that provides landscape-level data, tools, and evaluations for ...

  6. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    Existing topographic survey maps, because of their comprehensive and encyclopedic coverage, form the basis for much derived topographic work. Digital Elevation Models, for example, have often been created not from new remote sensing data but from existing paper topographic maps.

  7. Surveying - Wikipedia

    en.wikipedia.org/wiki/Surveying

    The ALTA/ACSM Land Title Survey is a standard proposed by the American Land Title Association and the American Congress on Surveying and Mapping. It incorporates elements of the boundary survey, mortgage survey, and topographic survey. Control surveying: Control surveys establish reference points to use as starting positions for future surveys ...

  8. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    Because a grid is a sample of a continuous space, raster data is most commonly used to represent geographic fields, in which a property varies continuously or discretely over space. Common examples include remote sensing imagery, terrain/elevation, population density, weather and climate, soil properties, and many others. Raster data can be ...

  9. Cadastre - Wikipedia

    en.wikipedia.org/wiki/Cadastre

    An example from early England is the Domesday Book in 1086. Napoleon established a comprehensive cadastral system for France that is regarded as the forerunner of most modern versions. Cadastral survey information is often a base element in Geographic Information Systems (GIS) or Land Information Systems (LIS) used to assess and manage land and ...