I have spent the past couple days in Yellowstone National Park, mostly in Wyoming but spilling over into Montana.
I doubt there are any cell towers in the park and I would guess the state of Rhode Island would fit in this huge national park. It is rare to drive for 3 hours anywhere and never get any cellular service. This is what we experienced driving from Jackson Hole Wyoming to Gardiner Montana through the park.
Furthermore, there are lots of points that are not marked in this area. All the geysers seem to be marked but not everything. I have already added 60 points and have 3 more days of travel to mark many more key points.
With no cellular service, GPS systems like Wayfinder and Navigon cannot function at all. I used my BrailleNote quite enjoyably the whole time and the Garmin Nuvi kept my family members happy with visual maps. We had 3 phone platforms between us, Android, Symbian and iPhone. None of those were a bit of help.
This is something to be aware of as we consider various on-line phone GPS services. Without a connection, they are no use.
Mike Michael G. May CEO Sendero GroupDistributors and developers of Sendero GPS for 5 platforms, BrailleNote, BrailleSense, Pac Mate, Windows PC and Mobile Geo for Windows phones. Also, distributing Trekker Breeze, Victor Stream, KNFB Mobile Reader, Talks, Mobile Speak, Miniguide and ID Mate.
Crashing Through, a book about Mike May, by Robert Kurson, available at http://www.CrashingThrough.com
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