Warning: I used to trust my phone's GPS for hiking trails until last Sunday on Mount Tam
I was out on the Matt Davis trail, a route I've done maybe 20 times. My phone showed a shortcut that looked legit on the map, so I took it. 45 minutes later I was stuck on a ledge with no signal, sweating through my shirt. I had to backtrack and lost 2 hours. Now I carry a paper map from the ranger station and a cheap compass. That GPS nearly got me airlifted out. Anyone else ditched their phone for paper maps on real trails?