Joexx wrote:
Sorry, you are incorrect. Cell phones can use towers to refine your location, but they primarily use GPS. I often use cellphone mapping with ONLY gps. Most recently at Canyonlands and Arches and 3 miles into Grand Canyon (2,000 ft down). Also at 35,000 ft in airplane.
Oops, almost forgot. The issue is you cannot get access to a detailed map unless you download one first (abs save locally on your phone)while you have internet access.
Bingo! Siri and Map Lady can't help you if you can't see a tower, but if you downloaded a map in advance the GPS in the phone will still display where you are.