<para>This is one of the most capable and expressive formats of all the file
formats supported by GPSBabel.  It is described at <ulink url="http://www.topografix.com/gpx.asp">topografix.com</ulink> and is
supported by EasyGPS, ExpertGPS, and many other programs described at
<ulink url="http://www.topografix.com/gpx_resources.asp">topografix.com</ulink>
</para>
<para>
GPSBabel's reader of this module attempts to preserve tags it doesn't
really understand.   It also tries to glean interesting data from
<simplelist>
  <member><ulink url="http://www.geocaching.com">pocket queries from Geocaching.com,</ulink></member>
  <member>Garmin's "gpxx" GPX extensions,</member>
  <member>Humminbird's "h" GPX extensions.</member>
</simplelist>
</para>
    
