This article shows how to create (and import) maps for Garmin devices using MapTiler Desktop.
This is available for Garmin devices, that support Custom maps. The actual list can be found on the Garmin support page.
An overview of compatible devices
Dakota 10 and 20
GPSMAP 62 series
GPSMAP 64 series
GPSMAP 78 series
Rino 600 series
eTrex 20 and 30
Edge 810, 800 and 510
BMW Motorrad Nav V
With MapTiler, it is quite simple to upload a custom map into your Garmin handheld GPS navigation. You can use any available raster online map or scan a paper map. In MapTiler choose Google Earth option.
Drag and drop the image inside
Confirm suggested coordinate system
If the image contains the geographical location, it is picked up automatically. Otherwise, you can assign location visually, define the bounding box or load it from an external file. This tutorial shows the Assign location visually option.
Find at least three of the same places on both maps. Be as precise as possible — use intersections, churches, bridges, or other landmarks. When you are finished, just click save.
In the right bottom corner is a preview of the Georeference. You can always change it by clicking on the “change” button. If you are satisfied with the result, click on Continue
Check the Garmin option and click on Render
Create a new directory and wait, until your map is rendered
View this map allows you to preview in the Google Earth application, where you can check the precision of your overlay
Open the created folder and pack the directory and doc.kml file into the zip archive
Rename the zip file and change the extension to .kmz
Important note - some systems still keep the .zip extension after changing to .kmz. Make sure you are using only .kmz
Connect your Garmin device and go to the folders Garmin -> Custom Maps
Copy the created .kmz file into your Custom Maps folder and disconnect the Garmin device from your computer
In your navigation, go to Menu -> Setup Map
Go to Select Map
Search for the Custom maps
Enable Custom Maps
Now, you are finished. Your map will be loaded with your position on top of the map.