• Surveyor General beacon coordinates Original file without lat & long
• Trig beacons full list Updated and tidy file with lat & long as XLS
  Trig beacons full list Same file as above in Garmin waypoint format.
  Trig beacons full list Same as above in arcview format
  Trig beacons full list Beacons list courtesy of Mike Lauterbach

       (These files as published on T4A website and dataprocessing by T4A members)

• Geotrans conversions between polar and lat/long coords.