Glamis Guide puts the Imperial Sand Dunes on an iPhone

Field notes

The app stores 368 MB of aerial imagery on the phone and organizes more than 80 camps, hills, washes, and landmarks into searchable, filterable locations. A selected destination displays live distance and bearing rather than road turns, while Siri commands and a Lock Screen Live Activity reduce the need to handle the phone in motion. The page says location cards combine photographs, elevation, copyable coordinates, and descriptions of both present-day Glamis and its history.