I did see some habitat just above 8000 ft that looked quite nice. Like Ryan said, this was on the South and West side of the mountain I was on. Would be fascinating to find a boa up there. Most of the records that I have seen, including unfortunate roadkills from this year, are well below 8000 ft in the area I was in. Then again, how many people are looking at 8000ft.

Thank you Richard and Ryan for answering this question.