Where does "mountain flying" begin?

"Newps" wrote

Flying over a mountain range is not mountain flying. Mountain flying is
flying in the mountains, below the peaks, relatively close to the ground in
the valleys and passes.

Are you sure you want to subscribe to that strict definition?

It seems to me that dealing with mountain waves, rotors, updrafts and
downdrafts, precipitation formed from air rising over the mountains, and some
other thing (no doubt) would still fall under the classification of mountain
flying.

No?
--
Jim in NC