Altitude Change is a Biatch

So I'm enjoying the lovely Salt Lake City area this week, and belying and sarcasm i do love the area. Park city is great, Salt Lake has a surprisingly thriving nightlife with amazing food(just drive near S 300 West) and a new light rail going from the airport to downtown. But the problem is that the city is at 4,000ft above sea level. I haven't gone this high up in a while and damn do my runs suck. Struggled through both runs so far..and can't wait to get back to 50 ft above...then again I'll be back for some skiing

ps rankings(for skiing)
ALTA
Canyons
Park City

I'll get to the rest this year