Wow, the lowest elevations are at 7500 feet, topping out at 12000 feet.




I don't have any advice for riding at the high elevations that your ride will do. Should you get there early and try to adapt? That might take quite a few days.

I trained for a solo climb from Asheville NC to Mt Mitchell (about 6000 feet of climbing in 30 miles, one way). I did some local rides along the Ohio River, 30 miles each way without a stop sign. It's rolling, about 900 feet of climbing each way, with a couple of 200 foot hills. I could watch my pace with a heart rate monitor, and try for a long, steady effort.

It's hard to train for long climbs when the local hills are 350 feet or less. But even these mile long hills let me work on cadence, effort and gearing. And the short, hard efforts on the climbs were very helpful, of course.