Hi, I have a lowrance GPS. This has the option of dumping data to SD card. What it will do is dump all the trails to SD card under 1 file <filename>.usr Then I use GPS Babel to convert usr to gpx. But this gpx is huge. Is there a way to extract just one trail out of this gpx data and keep the timestamps intact All trails have different names, and when I convert to kml I can see the tracks individually. Is there a way where I can do 1. Big .usr file to big .gpx file 2. Extract one track and save to a small gpx file which I can upload to osm?
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