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Using big size maps

Some maps, such as the one of whole Europe or United States of America, exceed the size admited by the installer (2 GB) or even memory cards (4 GB), so installation, and specially transfer to GPS device, requires several steps that are detailed below.

Installing maps on the computer:

  • Linux: process is quite similar to the one described at Using the maps. The only difference is that downloaded file is a zip file and after uncompressing it you get several files called MapData_Country-X.zip. If you have wine installed on your system, you can then run the installer (file OpenStreetMap_Country.exe). Otherwise, you'll need to also uncompress files MapData_Country-X.zip.

    Uncompressed files Linux

  • Windows: first step is uncompressing downloaded file. Any unzipping tool can be used, but some users have reported problems when using Windows built-in unzipping tool. In case of problems, it is recommended to use 7-zip to uncompress zip files.

    After uncompressing you'll have something like this:

    Uncompressed files Windows

    Next you just have to run the installer (file OpenStreetMap_Country.exe) and follow wizard steps.

    Installer

  • Mac: the process is the same as described at Using the maps.

Sending maps to GPS:

Memory cards file system has a limit regarding maximum file size allowed. This limit is 4 GB, so it is not possible to install whole Europe map in a single file. So it is necessary to select which parts of the map you want to have in your device and send them to the GPS without exceeding that limit. In the following section the way to accomplish this is described, using free Garmin software MapSource or BaseCamp (MapInstall). If our device is able to read several maps at the same time (see FAQ), after transferring one part of the map we can rename the file created in our device and repeat process to send a new area.

  • MapSource: once the map is installed, start MapSource and activate the map:

    Activate OSM map MapSource

    Next you must select tiles you want to send to device, using MapSource Map tool. Check total size of all tiles doesn't exceed 4 GB:

    Select tiles MapSource

    Finally, mapset must be sent to device:

    Send mapset

  • BaseCamp: along with BaseCamp another program called MapInstall is installed. That's the one we'll use to send maps to device. Open MapInstall and activate Europe map, as shown in the image below:

    Activate OSM map BaseCamp

    Next you must select the tiles you want to send to the device by left clicking on them (right click to deselect), having into account that total size is lower than 4 GB (or the free space in the memory card):

    Select tiles BaseCamp

    Once tiles are selected, click Continue button and finally click Install.

You can leave your comments on this page below:

Comments (21)

Topic: Big Maps
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4/5 (4)
1 2 3 > Last
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Radosso231 (Poland)
Screen shots of Basecamp are different next to what i see on MAC so i stuck.

I want to divide big map in to small .img and sent to gpsmap65
16th August 2024 9:40am
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voovan (China)
Hi, I am try to install map to my Garmin watch (mk2s)via mapinstall and mapsource, but they both failed.
I set the usb mode as Garmin mode, so the mapinstall and mapsource can recognize it as mks2 v22.20, but the senting stage it show communication error, make sure turn on the device or reboot the device.

did I miss something?

btw, I notice that although the free space in my watch is 16G, the mapintall says the map size I am going to install EXCEED 9.38MB, and the bar is RED.

Thanks in advance!
22nd July 2024 3:53am
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voovan (China)
I sent the maps to the sd card, then copy to the watch. hope it works
27th July 2024 3:10pm
Gravatar
voovan (China)
still not working.
the img can not fully display on the garmin mk2s
18th August 2024 1:58am
Gravatar
voovan (China)
still not working.
the img can not fully display on the garmin mk2s
27th October 2024 5:23am
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