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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 ...
The National Maps of Switzerland, also referred to as the Swisstopo maps, are a set of official map series designed, edited and distributed by Swisstopo, the Swiss Federal Office of Topography. Each map series is based on an oblique, conformal, cylindrical projection ( Mercator projection ), with a Swiss Coordinate system ( CH1903 + ).
Swisstopo is the official name for the Swiss Federal Office of Topography (in German: Bundesamt für Landestopografie; French: Office fédéral de topographie; Italian: Ufficio federale di topografia; Romansh: Uffizi federal da topografia ), Switzerland 's national mapping agency .
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Jul 13, 2021 · The National Topographic System (NTS) of Canada; Topographic Maps, The Basics (PDF 1.25 MB) Topographic Map Distributors – Paper Maps. To find the National Topographic System (NTS) map number for the area you are interested in and to purchase printed topographic maps, select one of the links below to locate a map distributor near you ...
National mapping agency. The original draftsman's drawings for the area around St. Columb Major, Cornwall, made in 1810. A national mapping agency ( NMA) is an organisation, usually publicly owned, that produces topographic maps and geographic information of a country. Some national mapping agencies also deal with cadastral matters.
Mairie de Loevenich (), from the Topographic Survey of the Rhineland by Tranchot/Müffling, sheet 57 (published 1806/07).. A map series is a group of topographic or thematic charts or maps usually having the same scale and cartographic specifications, and with each sheet appropriately identified by its publisher as belonging to the same series.
