This plugin adds location information to your posts and pages.
The Geo Tag plugin allows your posts and pages to contain location information which includes latitude, longitude, region, and country. This plugin has an easy and simple interface that can detect your current location or you can choose your location by searching for an address or clicking on the Google map. The location information is saved to the post or page and is included in the RSS feed and meta tags. The location information is available for use in your theme with the get_post_meta method. The plugin can also display a Google Map of the current post or a list of posts through the shortcode [geotag /]. The shortcode also exposes posts as geoJson.