This is a rather lengthy but interesting article about how using a GPS affects our brains, compared with navigating by other means.
https://www.bostonglobe.com/ideas/2013/ ... story.html
By searching the internet for articles by or about John Huth, much more can be learned about the ways our minds and bodies navigate and about how using gps impairs our natural abilities.
It is almost like our minds are a muscle. If we stop using a muscle it atrophies.
Huth wrote a long book on the art of finding out way. He is a Harvard physicist and an avid outdoors person.
So, not only does gps pose a threat to wilderness, it impairs our ability to see the world as it is.
I have travelled many miles in the San Jacinto mountains and other wildernesses using gps. I wonder now what I missed because if it. And will my brain ever recover.