Location: Finish/packet pickup was in Ashton, Idaho, in eastern Idaho about 2 -2.5 hrs from the Jackson Hole, WY airport. Note for sea-levelers: Ashton is 5,259 feet above sea level (and note, a week of easy running at a similar altitude is not sufficient acclimation).
Time of Year: End of August, on a Saturday.
Weather: Can vary, but for me it was wonderful — started in the high 40s at 6:30 am and ended in the low 70s, I think. Temperature felt good the whole time running but a little cold standing at the start.
Size: 12,000 runners across events, including a half marathon.
Weather and What I Wore: It was great running weather–clear skies, not windy, comfortable temperature. I wore too-short shorts (which came back to haunt me, and necessitated handfuls of Vaseline as a I neared the end of the race), a short sleeved tech tee, and a hat. I started with a long sleeved tee on top but ended up with it tied around my waist for most of the run.
Size: About 700 full marathoners, joined by a small contingent of relayers.
Time of Year and Weather: November. Both times I ran, the weather was great for running, although a bit cold at the start. Luckily there is no waiting around necessary before the start. Towards the end of the race, running in the sun along the water, I wanted to shed all of my layers. But then once I finished, I wanted them all back.