In this video, I’ll show you the easy way to install additional maps onto your eTrex 20.
You can add topo, bluechart, birdseye and other garmin commercial products. You can also install custom maps and compiled maps like ibycus topo or openstreet maps.
On your SD card, create a GARMIN folder and dump your maps into the folder (make sure you name them different.
When you start up your device, just go to the MAP PAGE, HIT MENU and under MENU SETUP | MAP INFORMATION you’ll be able to enable or disable any of the maps you have loaded onto the SD card.
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