Our auto-routing GPS snowmobile trail maps for Maine are color-coded and named using the same conventions as the paper trail map published by the Maine Snowmobile Association (MSA). Gas, food and lodging waypoints are included to mark on-trail services. See GPS screenshots and trails overlaid on Google Maps. Maine trail maps can be downloaded instantly and are also available on a CD and pre-loaded on a microSD card. The instant download and installation CD require Microsoft Windows.