It seems like the terrain has been completely flattened in the area around Anchorage AK, I was just flying up from Juneau and took a few screenshots. You can also see a straight line where the terrain begins again which leads me to think something is going on here? I included the HUD map so you can see the location.
The view in the second picture is looking off in the 10 o’clock direction from the position depicted.
I see older threads about this area being above the 60th parallel but I don’t think that is the rule anymore, since those threads are almost 3 years old.