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Maps for Garmin based on OpenStreetMap

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What can you do with the maps?

Maps can be installed on Garmin GPS's, as routable maps that will give you turn by turn instructions to go to a given place (depending on device's specifications). It can also be seen in your computer, where you can calculate your routes, using MapSource or BaseCamp Garmin software, or the open source programs QLandkarte GT or QMapShack. With the topographic maps you can also calculate profiles for your routes.

Viewing the maps in your computer:

  • Linux: you can use Qlandkarte GT, its sucessor QMapShack or MapEdit++ (the latter is for Windows, but works fine under wine). You can also use MapSource with wine and load maps running the auto-install file (wine OpenStreetMap_*.exe) or copying *.gmap folder into .wine/drive_c/ProgramData/GARMIN/Maps/

  • Windows: maps can be used with the open source programs Qlandkarte GT, its sucessor QMapShack or MapEdit++ or with Garmin software MapSource or BaseCamp.

    In order to load maps in MapSource or BaseCamp, you just have to run the file named «OpenStreetMap_*.exe» and follow wizard steps. It is important not to change installation path (typically C:\ProgramData\Garmin\Maps in Windows 10), otherwise BaseCamp will not be able to read map.

  • Mac: you will need Garmin programs BaseCamp (to open maps, plan routes, etc.) and MapInstall and MapManager (to send maps to GPS) installed in your system. To see the maps on BaseCamp you must proceed as follows:

    • Open the file you have downloaded in a “Finder“ window. Within it, you'll find a folder called “OpenStreetMap Country Type.gmap“.
    • In another “Finder“ window, go to “Applications“, right click on “Garmin BaseCamp“ icon and select “Show Package Contents” option.
    • “Contents“ folder will show up and, within it, “Resources“ folder. Move “OpenStreetMap Country Type.gmap“ folder into “Resources“. Once done, map will be ready to be used in BaseCamp.

Installing the maps in a GPS:

  • First of all, download file for GPS of the country you want from Downloads page and unzip it. You'll get a file called gmapsupp.img. The easiest way to have the map in your Garmin device is copying file gmapsupp.img in the external SD/micro SD card of the device, within a folder called «Garmin» (create it if it doesn't exist); in some models gmapsupp.img file must be copied into «Map» folder instead of «Garmin» folder (note «Map» folder may be hidden). This method is also recommeded because in case of any problem with the map, removing the card and restarting device will be enough to solve it. To copy it use a card reader (faster) or connect your device to the computer with a suitable cable, in 'Mass storage' mode (slower).

    Once copied, switch on the GPS, go to Settings>Map>Map Info and enable OpenStreetMap map. The way to activate the map varies from one model to other:

nüvi 300:

Entering map setup on nüvi
Under Map Setup, enter Map Info

Legend HCx:

Enabling map on nüvi
Check OpenStreetMap map to activate it

Entering map setup on Legend HCx
Enter Map Setup

Enabling map on Legend HCx
You have to activate each tile

  • If you don't have an external card, you can use any of the free programs sendMap or Qlandkarte; you can also use MapSource or BaseCamp from Garmin. In the last cases, you first have to load the map in MapSource/BaseCamp as explained above.

Using on Android devices:

If you want to see maps from this site on your Android mobile device, you can use OruxMaps app. For that, follow the steps below:

  • Download file for GPS of the country you want from Downloads page and unzip it. You'll get a file called gmapsupp.img. You can change the name to something more descriptive, such as MyCountry.img.
  • Copy that file into OruxMaps maps folder, by default oruxmaps/mapfiles/.
  • Open OruxMaps app, click on «Switch map» button and select previously saved file.
  • Map setup in OruxMaps

  • For a better visualization of maps, it is recommeded to go Global settings->Maps->Garmin maps settings, and uncheck Wpt labels background, Polygon labels background and Line labels background boxes.
  • Garmin maps settings in OruxMaps

  • Note: these maps are not routable on OruxMaps.

You can leave your comments on this page below:

Comments (84)

Topic: Use
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Pawel Miciak (Warszawa, Poland)
Hi,
I have a problem with installation of South Africa map on my Naigator VI. After unzipping folder there is no gmapsupp.img file. Could you tell me how to instal this map on my GPS?
Best regards,
Pawel
Admin:
Hi Pawel
I have checked South-Africa files and they all contain gmapsupp.img files. Are you sure you downloaded file for GPS, not the one for computer?
9th March 2021 4:51pm
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Mustapha BENAISSA (Aïn Témouchent, Algeria)
Bonjour
Comment utiliser gmapsupp.img avec l'application "Maps me" sur Android ?
"Maps me" permet de télécharger seulement 2 cartes du nord de l'Algérie mais pas celles du Sahara.
Merci
Admin:
Je suis désolé, mais je n'ai pas d'expérience avec Maps.me.
7th February 2021 4:11pm
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Mustapha Benaïssa (Aïn Témouchent, Algeria)
Merci pour votre réponse. J'ai trouvé la solution grâce à "Hot Export Tool" de "Humanitarian OpenStreetMap Team".
https://export.hotosm.org/
8th February 2021 11:48am
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Mat (Germany)
I downloaded the DEM-maps for germany twice today. The first time I run the .exe-file and extracted the files to the suggested path then went on with the installation and also used the suggested path. Basecamp didn't show the DEM-map. The second time I saved the zip, run the .exe-file, always chosed the suggested paths and once again Basecamp didn't display any new map. It's a pitty that I spend so long trying to get it to work without any results. What can I do? Is there a way to manually ... Read More
Admin:
I'm sorry to hear installer doesn't work for you. If you know the path where other maps are in your computer, you can just copy OpenStreeMap_Germany.gmap folder on that route. Depending on your operating system version, route will vary. You can look at some of the followings:
C:\Program Files (x86)\Garmin\BaseCamp\Maps
C:\ProgramData\Garmin\Maps
C:\Program Files\Garmin\BaseCamp\Maps
C:\Documents and Settings\All Users\ProgramData\Garmin\Maps
Please report if you get it to work and in which folder
6th May 2020 12:48am
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Mat (Germany)
I finally got it to work today: since the installer didn't work I tried manually. to use the DEM-map the folder "OpenStreeMap_Germany.gmap" needs to be moved into the folder where the basic map (the one which comes with basecamp) is stored! It does not work if it is in the same folder with the img-data for the 2D-maps. I've got a 64-bit system with windows 10. So what works for me is: the 2D-maps are installes in "C:\Garmin\Maps" the 3D-maps I downloaded (which is basically the ... Read More
Admin:
Thank you very much for your reply. Sure it will help others with the same problem.
6th May 2020 12:41pm
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