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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 ...
This is a list of highest points in the U.S. state of Arizona, in alphabetical order by county. Elevations are from USGS 1:24,000 scale topographic quadrangle maps. Elevations followed by a plus sign (+) are minimal values. The contour interval is shown after the (+). Robert Walko listed the Arizona county high points and then hiked them in ...
In addition to matching the Topozone URL's, the website offers free download of GeoTIFFs, which Topozone had only offered for a premium. TopoQuest started adding Canadian 1:50K scale topographic maps in July 2008, and USGS 1:100K and 1:250K scale topographic maps in March 2009.
The USGS also utilizes data from The National Map Corps, which consists of volunteers who devote some of their time to provide cartographic information on structures. [ 4 ] The National Map is the official replacement for the USGS topographic map program .
The maps are produced by the USGS, which encourages the distribution of their maps through business partners. TopoZone offered aerial photographs from the USGS and street maps from the United States Census Bureau. In 2007 complete coverage of Canada was added, using the topographic map series produced by Natural Resources Canada.
The following is a list of the mountains and hills of Arizona, ordered by height.. Entries in bold indicate the peak is the highest point in its respective county.. Entries with a † indicate the peak has a low topographic prominence and may be considered a subpeak to a higher nearby summit.
Approximately 65 percent of Arizona residents live in Maricopa County, which had a population of 3,817,117 as of the 2010 Census. Maricopa County ranks fourth among the nation's counties in terms of population, and is more populated than 24 of the U.S. states. The county seat of Maricopa County is Phoenix, which is Arizona's largest city and ...
The topographic elevation of a summit measures the height of the summit above a geodetic sea level. [ 2 ] [ 3 ] The first table below ranks the 20 highest major summits of Arizona by elevation. The topographic prominence of a summit is a measure of how high the summit rises above its surroundings.