Tracks on my GPS 62s in GPS technology and devices Posted March 30, 2012 That is specifically why I always / only "archive daily". Previous models had that choice also when "saving track to card", but when newer models came out it wasn't available at first, but was added later. If you have your GPS turned on let's say at home, in the house or outside while you're sitting fiddling with it, it will constantly be logging unimportant, non useful points all the time it's on. OK, now let's say you turn it off after an hour of fiddling with it at home, and don't turn it back on until the next day. Archived daily, the previous day's archived file (gpx) will be nothing but random garbage points.....Go into the Archive folder every once in a while (monthly?) and delete it/them. Literally just think of it like a ball of string in your back pocket that unrolls as you move. "Archiving" or " Clearing the track" cuts the string. Archiving Daily (the GPS unit automatically) cuts the string at the end of every day, all movements During that day are attached. Archiving Weekly ( the GPS unit)cuts the string at the end of the week but all movements during that week are connected. "Clearing" the track log cuts the string at any time YOU choose and disconnects your present position from all previous movement all the way back to the point in time when your unit "auto archived" Yes,yes, I know that the user can turn "track logging" off but that's really not the best practice. Just leave "logging" ON, archive Daily, and clear it's brains whenever you desire. If you forget and occasionally still get one of those lines, with almost any GPS computer software, you can also just cut/break the connecting straight line and it will disappear. If you will notice, there really aren't any track points along that line between where you turned the unit off and where you turned it back on. Just a connecting line between two separate points in time.