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The Libre Map Project was started by Jared Benedict and around 100 additional individuals contributing money to purchase (or "liberate") a full set of 1:24K scale USGS topographic maps in Digital raster graphic form. [1] The map files were then hosted by archive.org to ensure the map data will continue to be freely available to everyone ...
Georeferenced map images are available from the USGS as digital raster graphics (DRGs) in addition to digital data sets based on USGS maps, notably digital line graphs (DLGs) and digital elevation models (DEMs). In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to ...
The National Map is a significant contribution to the U.S. National Spatial Data Infrastructure (NSDI) from the Federal Geographic Data Committee (FGDC) and currently is being transformed to better serve the geospatial community by providing high quality, integrated geospatial data and improved products and services including new generation ...
Libre Map Project. All 50 States USGS Topographic Maps on the Internet Archive; USGS Topographic Maps of ALL 50 States; USGS Sites Digital Raster Graphics Archived 2005-05-21 at the Wayback Machine; Earth Explorer (GeoTIFFs) Map Locator (GeoPDFs) Kentucky Raster Graphics Image Download Center Archived 2006-09-25 at the Wayback Machine
This scale is unique to the United States, [citation needed] where nearly every other developed nation has introduced a metric 1:25,000 or 1:50,000 large scale topo map. The USGS also publishes 1:100,000 maps covering 30 minutes latitude by one degree longitude, 1:250,000 covering one by two degrees, and state maps at 1:500,000 with California ...
USGS logo. A Digital Line Graph (DLG) is a cartographic map feature represented in digital vector form that is distributed by the U.S. Geological Survey (USGS). DLGs are collected from USGS maps and are distributed in large, intermediate and small scale with up to nine different categories of features, depending on the scale.
Charting North America, maps and atlases in the New York Public Library Digital Collection; Online digitized versions of many 18th- and 19th-century American atlases, as well as the 1897 Rand McNally Indexed Atlas of the World and many other maps, can be found at DavidRumsey.com. Hipkiss' Scanned Old Maps from Atlases and any old books with ...
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