From
www.Garmin.com...
"The
MapSource® US TOPO 24K National Parks, East v3 includes extremely detailed topographic maps of Eastern U.S National Parks. This CD is ideal for hikers, campers and outdoor enthusiasts of all kind. Plan your outing on your PC, then download maps and data to your compatible Garmin GPS to guide you on your next trek. See the product compatibility table (right) for a list of products that Garmin recommends with this software. 1:24,000 scale
The
MapSource® US TOPO 24K National Parks, Central v3 provides detailed coverage of U.S. National Parks located within the Central United States. With its detailed topographic maps, this CD is ideal for outdoor enthusiasts who love to explore U.S. National Parks. See the product compatibility table (right) for a list of products that Garmin recommends with this software. 1:24,000 scale
The
MapSource® US TOPO 24K National Parks, West v3 includes extremely detailed topographic maps of Western U.S National Parks. This CD is ideal for hikers, campers and outdoor enthusiasts of all kind. Plan your outing on your PC, then download maps and data to your compatible Garmin GPS to guide you on your next trek. See the product compatibility table (right) for a list of products that Garmin recommends with this software. 1:24,000 scale
TOPO U.S. 2008 features digital topographic maps for the U.S., including Alaska, Hawaii and Puerto Rico. It is available in two different formats making it easy and convenient to load data to your compatible Garmin device: MapSource® DVD and preprogrammed micro SD data cards. 1:100,000 scale"
The electronic compass sucks battery life. You'll want a stand alone compass.
I think that the color screen is a must for on-road use. It allows you to tell the difference between the track and the road (by color).
Also, either get one with a huge memory or replaceable memory cards. The maps are big, and the less often you have to download the better you will feel. A friend of mine has the 60C and he has to download new maps for pretty much every trip. I have all of the US west of the Mississippi river loaded in my 60CSx. My wife's GPS has ALL of the US in it.