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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 ...
Website. www .usgs .gov. The United States Geological Survey ( USGS ), founded as the Geological Survey, is an agency of the United States government whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the ...
Apple Maps - covers the whole country. Bing Maps – covers the whole country. Google Maps - covers the whole country. Libre Map Project. MapQuest - covers the whole country. The National Map by the United States Geological Survey. Roadtrippers - covers the whole country. TerraServer-USA - covers the whole country.
Website. library .usgs .gov. The United States Geological Survey Library ( USGS Library) is a program within the United States Geological Survey (USGS), a scientific bureau within the Department of Interior of the United States government. The USGS operates as a fact-finding research organization with no regulatory responsibility.
The site is one of three internet services used by Wikipedia for providing topographic maps. It arose to prominence in May 2008 after TopoZone through its new trails.com owners required payment for access to its maps. TopoQuest map links are the same as Topozone's except for the difference in the domain. It is operated by Ryan Niemi in Klamath ...
The Free Software Foundation considers the development of a free compatible client for Google Earth to be a High Priority Free Software Project. Google Earth was released for Android on February 22, 2010, and on iOS on October 27, 2008. The mobile versions of Google Earth can make use of multi-touch interfaces to move on the globe, zoom or ...
The National Map is a collaborative effort of the United States Geological Survey (USGS) and other federal, state, and local agencies to improve and deliver topographic information for the United States. [1] The purpose of the effort is to provide "...a seamless, continuously maintained set of public domain geographic base information that will ...
TopoZone. TopoZone is a website operated by Locality LLC that offers free online topographic maps. It was founded in November 1999 by Ed McNierney whose company Maps a la carte, Inc. operated out of North Chelmsford, Massachusetts. Prior to founding the company, McNierney, an organic chemistry graduate of Dartmouth College, was chief technology ...