I have a Garmin Rino 120 with the mapsource software. you need a pc cable which I figure you have. Do a search to find the city closest to your hunting area then locate it using the roads you have to zoom in to get the side streets and county roads to show up. The use the square witha different side(on my version of mapsource it is call a "map tool") thenclick on the area to hi light the area the press the up load button. Hope this helps