Originally Posted by
p2templin
In the words of my Electromagnetic Fields professor, "Say what now?" GPS satellites orbit at a height of approximately 12,600 miles. If you're in the mountains, you will have shaved 1-6 miles off that distance, peanuts in the grand scheme of things. If you were riding in mountainous caves, you might see a loss of signal; otherwise, you'll be fine.
Here's the incredibly unscientific, uninformed basis for my concern...
A) My cell phone is dead as Dillinger up in those mountains.
B) I once overheard somebody who works up in said mountains tell a visitor that no cell phones or GPS devices work in the area.
And that, my friends, has been enough for me to hesitate to drop hundreds of dollars on a Garmin, especially since the mountains is where I do most of my riding. I will happily listen to reason, if others haven't had any problems.