[GPSNavX]

When a Garmin Colorado or Oregon GPS is connected to your Mac via the Garmin USB cable it will show up as a drive. A "GPX" folder can be found on the Garmin drive. GPSNavX and MacENC can export waypoints and routes as a GPX file (Use "Transfer" "To GPX File..." on the "Waypoints" or "Routes menu"). Do so to the "GPX" folder and the Garmin Colorado or Oregon will import the waypoints and/or routes.

Another option is to use this free application ..

http://www.cluetrust.com/LoadMyTracks.html


Revision:

Just a note of warning that the latest Colorado 400C internal software (v3.40) has a bug that it does not support NMEA data over the PC interface cable. This prevents it from working for real-time plotting with GPSNavX or MacENC. I am working with Garmin to resolve this. This has no impact on transfering waypoints, routes or tracks. The Oregon 400C works fine using NMEA data and the PC interface cable (Combined with a Keyspan USB to Serial Adapter).

[b]https://buy.garmin.com/shop/shop.do?pID=1169[/b]