The search engine currently requires only the geo.position tag.
The geo.region, if present, may be used for verification
(checking that the position is in the correct quadrant and
matches the region code).
The position tag is basically (using decimal degrees, as in a Google map URL)
<meta name="geo.position" content="latitude;longitude">
You may use the Geo Tag Generator to create META tags to add to your pages. This will ensure that your pages are properly indexed and described. Or use MyGeoPosition.com and select "Geo-Metatags" (mygeoposition uses Google's address lookup technology)
Please do not pollute the geo tagged space by tagging pages that do not warrant it.. For instance, if you live in Vancouver and own a bagel store in Calgary:
|Your house in Vancouver||CA-BC||49.24;-123.13|
|The Bagel Store||CA-AB||51.0411;-114.0623|
|Picture of your hotel in Paris, France||FR-75||48.85;2.34|
|Your political opinions||do not use|
|Picture of the Moon||do not use|
Alternate forms of location tags may be supported in future if they become widely adopted.