Heliport,
Yes 15,000ft in an R22BII. I also know someone who claims to have flown one to !7,500ft and still climbing.
You can see from the photo we are almost at the top which i believe is 16,500ft.
We spent three days in the area with a very experienced ex mil mountain flyer. Part of his military training included a full month camped out in the mountains with the austrian army studying wind patterns etc.