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GeoRSS is a way to encode location in RSS and Atom feeds. It allows a user to perform geographic searches on feeds, or to map information found in feeds. GeoRSS is a lightweight format that can be added to existing feeds with little effort. It supports basic geometries (point, line, box, polygon) and covers the typical use cases when encoding locations.
CGDI endorses the GeoRSS Simple specification, which uses latitude/longitude based on the WGS-84 coordinate reference system. It is designed for use with Atom 1.0, RSS 2.0 and RSS 1.0, although it can be used just as easily in non-RSS XML encodings
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