The Garmin GPS III is fully supported by GeoBuddy.
GeoBuddy can connect to the Garmin GPS III to transfer geocaches, waypoints, routes, and tracks through your computer's serial (COM) port, and can display your GPS data over USGS topo maps and aerial photos.
The Garmin GPS III can hold 500 waypoints. Waypoints on the Garmin GPS III can contain up to 6 characters. Waypoint comments or notes can contain up to 20 characters.
These are the waypoint symbols for the Garmin GPS III that are displayed in GeoBuddy:

The GPS III can hold 20 routes, each containing up to 30 turns or stops. Route names on the Garmin GPS III can contain up to 13 characters.
The GPS III can hold 11 tracks. Saved tracklogs on the GPS III can have up to 250 trackpoints. The active tracklog holds 1900 trackpoints. Track names on the Garmin GPS III can contain up to 13 characters.
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