Arizona Geological Survey GeoSciML Web feature service for GeologicUnit mapped features
http://vm.usgin.org:8080/PolygonMappedFeature/wfs (12/24/09--off line for server upgrade, check back in January)
Here is an example get feature request that will produce a GeoSciML response:
<wfs:GetFeature service="WFS" version="1.1.0"
xmlns:wfs="http://www.opengis.net/wfs"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs
http://schemas.opengis.net/wfs/1.1.0/wfs.xsd">
<wfs:Query typeName="gsml:MappedFeature">
<ogc:Filter> <ogc:BBOX>
<ogc:PropertyName>shape</ogc:PropertyName>
<gml:Envelope srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
<gml:lowerCorner>-110 32.5</gml:lowerCorner>
<gml:upperCorner>-110.001 32.5001</gml:upperCorner>
</gml:Envelope>
</ogc:BBOX>
</ogc:Filter>
</wfs:Query>
</wfs:GetFeature>
You can send this request to the server by copying and pasting in the request box at