Primal Quest....
I hadn't heard about this until getting roped into volunteering last year for it. It's a team race that uses a variety of disciplines (swim, bicycle, kayak, ropes, orienteering, and others, depends on the year). Teams race against each other and also against the clock. For those interested in learning more, here's a link:
http://www.ecoprimalquest.com/wp-primal/pq/
It's a fun group of people, and the athletes tend to be in insane shape. If I'm remembering correctly, the first stage was a climb from 7,000 feet to 11,000 feet (about 5,000 feet elevation change) and back down. I don't know the mileage, but the first teams weren't expected to come down to the checkpoint for about 3 hours. The lead teams were down in about an hour and a half. Last year it was in Montana, this year it's in South Dakota.
http://www.ecoprimalquest.com/wp-primal/pq/
It's a fun group of people, and the athletes tend to be in insane shape. If I'm remembering correctly, the first stage was a climb from 7,000 feet to 11,000 feet (about 5,000 feet elevation change) and back down. I don't know the mileage, but the first teams weren't expected to come down to the checkpoint for about 3 hours. The lead teams were down in about an hour and a half. Last year it was in Montana, this year it's in South Dakota.