We often top moutains over 14,000.
-Robert

I love the Rockies, Sierra and Cascades and readily admit they are
more spectacular than our Appalacians, as well as higher.

However, I've flown to the West Coast several times and to Alaska
twice and I NEVER had to "top mountains over 14,000."

IIRC, one can fly from PA to AK without ever getting above 8,000' msl.
And that is over the relatively flat (though high) land of southern
Wyoming.

Perhaps you need to learn to fly BETWEEN the mountains. ((:-))

vince norris