When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Microsoft Research Maps - Wikipedia

   en.wikipedia.org/wiki/Microsoft_Research_Maps

   Microsoft Research Maps (MSR Maps) was a free online repository of public domain aerial imagery and topographic maps provided by the United States Geological Survey (USGS). The site was a collaboration between Microsoft Research (MSR), Bing Maps, and the USGS. It was in operation from June 1998 to March 2016.

3. United States Geological Survey Library - Wikipedia

   en.wikipedia.org/wiki/United_States_Geological...

   When operational, the Center was a joint effort of the USGS National Mapping Division and the National Science Foundation United States Antarctic Program. The Center maintained the nation's most comprehensive collection of Antarctic aerial photography, maps, charts, satellite imagery, and technical reports.

4. The National Map - Wikipedia

   en.wikipedia.org/wiki/The_National_Map

   The National Map is part of the USGS National Geospatial Program. [3] The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. The National Map is accessible via the Web, as products and services, and as downloadable data ...

5. Digital orthophoto quadrangle - Wikipedia

   en.wikipedia.org/wiki/Digital_orthophoto_quadrangle

   A digital orthophoto quadrangle [1] (DOQ) is aerial photography or satellite imagery that has been corrected so that its pixels are aligned with longitude and latitude lines, and have a narrowly defined region of coverage. This is a widely used format introduced by United States Geological Survey (USGS). [1]

6. List of GIS data sources - Wikipedia

   en.wikipedia.org/wiki/List_of_GIS_data_sources

   Online collection of all digital USGS 1:24K scale topographic maps (as well as various other GIS data) covering the United States, available as a free download. NPScape United States Department of the Interior National Park Service NPScape is a landscape dynamics monitoring project that provides landscape-level data, tools, and evaluations for ...

7. United States Geological Survey - Wikipedia

   en.wikipedia.org/wiki/United_States_Geological...

   In 2008 the USGS abandoned traditional methods of surveying, revising, and updating topographic maps based on aerial photography and field checks. [33] Today's U.S. Topo quadrangle (1:24,000) maps are mass-produced, using automated and semiautomated processes, with cartographic content supplied from the National GIS Database. [33]