It's either using cell phone triangulation (there are microcells in all our subway stations) or SSIDs (there is wifi in all our stations). I agree, it's definitely not GPS.

We seem to be having the same issue. I can't get anything in iOS 18.3.1 to work where it certainly used to work in iOS 17.

Perfect, sounds good and will file a report within a couple weeks. Need to gather some data.

Hi, please see FB17217594. @Engineer

Hi, the screenshots all show values relative to street elevation, which is shown at the bottom. So for example in IMG_0003.PNG, street elevation is 21ft and the Core Location value is 3ft above street so it's indeed reporting about 24ft.