Most Garmin handheld units allow the user to calculate the area enclosed
by a saved tracklog. Some older units may require firmware upgrades
to enable this feature. Go to Garmin's firmware
upgrade page and download the latest unit software for your
unit. As
long as your GPS can connect to a computer, you can download tracklogs
and/or waypoints to the computer and then use the Garmin MapSource program
to calculate area, and even edit the tracklog. Certain GPS models can
do the area calculation on the unit itself. If you have any questions
regarding area calculation send an email to art@gpszone.ca.