These are the Garmin GPS units that can use the Garmin "Custom Maps" created by G-Raster; this was confirmed on the Garmin unit compatibility page for the Colorado/Oregon/Dakota series, and the Garmin product pages for the GPSMap 62/78 series.
| Colorado | |||||
| Oregon (1st-generation) | |||||
| Oregon (2nd-generation) | |||||
| Dakota | |||||
| GPSMap 62 | |||||
| GPSMap 78 |