Quite good maps from basically all regions in Russia. The site is only in russian, but thanx to google translate that shoudln't be too much of a problem. You can download the map as .zip file which includes all necessary data to integrate it into mapsource and to upload it to your Garmin GPS device from there or to manually upload it to your GPS device. If you don't know how to integrate the map into mapsource manually or how to uploap maps directly check Tips 'n Tools.
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