Extension:Gis/geo tag

Geo tag
The &lt;geo&gt; tag allows entry of geographical coordinates in style with RFC1876. For example, specifying degrees, minutes and seconds of latitude and longitude:

&lt;geo&gt;48 46 36 N 121 48 51 W&lt;/geo&gt;

All coordinates should be referenced to en:WGS84, or an equivalent datum.

Variations of the above allows specification of degrees and minutes, and degrees only. Decimals can be added to increase presision. Additional meta-data can also be specified as attributes for the location, like this:

&lt;geo&gt;48 46 36 N 121 48 51 W type:mountain region:US scale:100000&lt;/geo&gt;

In the rendered article, the tag will be replaced with 48&deg;46'36N 121&deg;48'51W, which is also a Wikilink to a page of map resources for that point.

The main geo tag advantages are:


 * 1) Consistent markup for coordinates.
 * 2) Consistent rendering of coordinates.
 * 3) Wikipedia articles with coordinates will get a 'geo.position' meta tag, making it compatible with Internet geographic resources, such as geourl.org.
 * 4) Serves as an enabler for the two other extensions.

In addition to a point, the tag can also specify a box by giving two, opposite corner points, like this:

&lt;geo&gt;48 45 N 121 47 W to 48 47 N 121 49 W&lt;/geo&gt

Attributes
Following the geographical coordinate, further parameters can optionally be supplied. Available attributes are:

type:T
Sets the type of this location, which will be used for the reverse mapping of the points. This will also influence the default map scale. Types are:

scale:N
Sets the desired map scale as 1:N. This will override the default scale. The scale: prefix can be omitted.

region:R
Sets the preferred map region of coverage, used in selecting appropriate map resources for the area. The region should be supplied as either a two character ISO 3166-1 alpha-2 country code, or an ISO 3166-2 region code.

When a region is specified, for the map resource, the page Wikipedia:Map sources/RR will be used if it exists. RR is the two character country code.

globe:G
Specifies other worlds than en:earth. Such as the en:Moon. For the map resource, the page Wikipedia:Map sources/G will be used.

page:P
Specify an alternative page for map sources, in the form of Wikipedia:Map sources/P.