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  1. The National Topographic System or NTS is the system used by Natural Resources Canada for providing general purpose topographic maps of the country. NTS maps are available in a variety of scales, the standard being 1:50,000 and 1:250,000 scales. [1] The maps provide details on landforms and terrain, lakes and rivers, forested areas ...

  2. The Topo TNM Style Template is provided by the U.S. Geological Survey (USGS) National Geospatial Technical Operations Center (NGTOC). It has been developed according to the 24,000-scale, 7.5-minute layout and cartographic design of published US Topo Maps and is intended for use in any geographic location where data is available for download ...

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  4. US Topo maps are produced by the National Geospatial Program of the U.S. Geological Survey (USGS). First launched in 2009, US Topos combine the familiar look and feel of legacy paper USGS topographic maps with technological advances of the 21 st century. US Topo map data is derived from the geographic information system (GIS) data of The ...

  5. 1. The Historical Topographic Map Collection (HTMC) is the set of scanned images of USGS topographic quadrangle maps originally published as paper documents in the period 1884-2006. Visit Historical Topographic Maps - Preserving the Past for more information. 2. US Topo is the current USGS topographic map series for the Nation.

  6. Fact Sheet 2017–3045, June 2017. Supersedes USGS Fact Sheet 2013–3093. geospatial data (orthoimagery, transportation, geographic names, topographic contours, boundaries, hydrography, woodland, and structures) from TNM databases. Many new feature layers have been added in the past several years. In 2016, a pilot project was completed that ...

    • 3MB
    • Kristin A. Fishburn, William J. Carswell
    • 2
    • 2013
  7. 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 ...

  8. Non-conforming maps help make the National Topographic System (NTS) more efficient. Generally, non-conforming map sheets can be identified by their irregular lines on the grid; however, some non-conforming 1:250 000 maps are identified by a light/dark pattern of lines and repositioned labels.

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