I use two GPS units when going to new areas! Around the local area I use my old trusty TomTom! All I'm concerned about is the direction North! We carry great EMS maps of our area (Lake County MI.), and have started to collect other 911 maps as well. They show most of the logging trails, and appropriate markings in the event of an emergecncy. My second unit is the Lowrance Endura Safari, neat little unit. We use this for strictly tracking our route. What we follow in, we reverse and follow out! And we carry two cell phones with different services! Downside to the TomTom is not being able to add trail maps! Garmin has units that have them, but are priced out of our need's! What are other's using? Cell phone apps. seem to be gaining on trail GPS units!