Summary: I have used several GPS units for hunting and wilderness navigation...including 62 series,Oregon 550, delorme PN40, and Montana series. The Oregon 600t is my favorite so far. It does everything the Montana series can but is smaller fitting nicely on my pack shoulder strap.
Summary: The Garmin 660t is a good GPS unit overall, but it takes a lot of time to get familiar with the many features. Garmin does not provide a users manual with the unit and only a quick start guide which just scratches the surface on using the unit.
Summary: A great gps unit. The touch screen is wonderful and works well. I love the heavy duty USB cord. Topo map that is included is pretty good but still had to purchase a more detailed map. This unit seems to me to be a bit better connecting to satellites in the forest and produces accurate trails.
Nice enough for 5 stars, though, there are some caveats...
Thomas A. Oehser, Amazon
2 September 2014
Summary: Nice enough for 5 stars, though, there are some caveats... I have also an Oregon 450t. First, about the "t" models with the topo maps- These are just models with _more internal memory_. You can delete the topo maps and use the space.
Summary: Loved my NUVI so got this for hiking. I'll admit I'm not the most savvy person in the world using devices like this but I'm not incompetent either. Buy one of these if you want to get frustrated as hell. Not very user friendly but when you do finally get it to where you want it still comes up small.
Summary: This past week I bought the Garmin Oregon 600 to use cycling. I had to return it. Why? Because it is not safe to use on a bicycle. Why? Because when the device goes to sleep, unlike the Oregon 450 and 550 which you merely tap and it comes back on, with the 600 you have to press the side power...