http://www.garmin.com/...,48,80Addendum.pdf
The GPS can now calculate an area using the track log. ... GPS 12,12XL, 48, ... To calculate an ... 1. From the Map Page, highlight the ‘OPT’ selection at the ... 2. Highlight ‘TRACK SETUP’ and press ... 3. Highlight ‘CALC AREA’ and press ...