Trailheads of the Sierra Vista Trail (on OpenStreetMap):

 * [[http://www.openstreetmap.org/?mlat=32.29379&mlon=-106.61184&zoom=15&layers=M|Soledad Canyon (Las Cruces)]]
 * [[http://www.openstreetmap.org/?mlat=32.20999&mlon=-106.6149&zoom=15&layers=M|Mossman Arroyo (Mesquite)]]
 * [[http://www.openstreetmap.org/?mlat=32.13767&mlon=-106.60552&zoom=15&layers=M|Vado]]
 * [[http://www.openstreetmap.org/?mlat=32.01068&mlon=-106.52171&zoom=15&layers=M|NM 404 (Anthony)]]

The trail on OpenStreetMap is labeled as such, and in most places is a dashed red line (wide enough for pedestrian/horse usage). The southern portions have it rendered as a dashed brown line (wide enough for motor vehicle usage).

I've GPS tracks in two segments: the first segment is from [[http://www.gpsies.com/map.do?fileId=akqnynhpbzgmnkxw|Anthony to Vado]], which is unfortunately inaccurate because I became lost trying to hike it. The second segment is from [[http://www.gpsies.com/map.do?fileId=zfganskwpkdahpvo|Vado to Soledad Canyon]].

You can load [[attachment:Sierra-Vista-Trail.kmz]] into Google Earth to visualize all the trailheads. Add the [[http://www.markus-bader.de/osm/OpenStreetMapLayer.kmz|OpenStreetMap layer as a "Network Link"]] to compare it against to OpenStreetMap and the trail's actual route.