[dboreham]

I bought a sat phone after an experience rescuing a couple (and their two large dogs) in 20 below weather from the Battleridge campground where their truck had become stuck. That's only 20 miles outside of Bozeman but cell service fades out long before there so they had no way to call for help. I've used it a few times over the years when camping and driving around the area on day trips. As you say, cell service is very much optional away from towns and the freeway.