• Latitude
  • Earth diagram showing parallels of latitude, the equator, and the poles
  • Measuring latitude with a map ruler
  • One minute to one nautical mile relationship
• Longitude
  • Earth diagram showing meridians of longitude west and east of the prime meridian
  • Measuring longitude with a map ruler
  • Example lat/lon coordinates in two popular formats and their GPS "units" settings.

Card measures 2.75" x 2.75", the same as our other "Pocket Sized" tools. Printed on 0.020" thick plastic stock. Includes a lanyard hole.