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OTIS in Mount Vernon, WA
OTIS in Mount Vernon, Washington

Coop CORS
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The Cooperative CORS (continuously operating reference station) system provides access to GPS data that are disseminated by organizations other than the National Geodetic Survey (NGS).   Data from a Cooperative CORS site may also be available from NGS, in which case the site is called a Combo CORS.  This web page contains links to the web sites of cooperating organizations where users can download pertinent GPS data, positional coordinates, and related information.  NGS computes these positional coordinates to ensure their consistency with the National Spatial Reference System (NSRS).  Please contact the cooperating organization if you encounter difficulties in accessing information from their web site.

For more information please read the article on Cooperative CORS in the January, 2001 issue of Professional Surveyor magazine.

You can access the Cooperative CORS site directly by clicking on the site ID on the sides.

If a broken link is encountered please let us know.

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