Create Garmin Custom Maps with Global Mapper and TerraIncognita
Upload your own Google Earth maps to the Garmin
Colorado, Oregon, Dakota, and GPSmap 62&78 hand-held units.

This review is based on using the GPSmap 78sc  ° 25 Oct. 2010
For specific questions about this product, log onto the GPSInformation.net FORUM

GENERAL:
In order to upload the highest-resolution Google Earth photos quickly and perfectly registered, one must use Global Mapper (about $300).  Global Mapper, among its many features, has the ability to import georeferenced Google Earth .jpg photos registered as Ozi Exolorer .map files and export them as a .kmz map file containing 100 or less tiles (a requirement for Garmin's Custom Maps).

PROGRAM SETUP:
Exporting the data files as .kmz files to the Garmin unit is easy as 1,2,3.

Click on these thumbnails for larger views
..........

Now don't get lost out there -youall!
jack yeazel