http://www.adventuresportsfestival.com/

If you sign up for the Ebbetts Pass century you get to bypass the Death Ride lottery in 2008. This ride covers some roads not on the Death Ride.
Here are a couple links to the photos of Mountain Biking and Rock Climbing in the area.

http://forums.mtbr.com/showthread.php?t=329466

http://www.rockclimbing.com/cgi-bin/forum/gforum.cgi?post=1654201;page=unread#unread