Pueblo's mountain biking trails popularity have exploded this year. From those I've talked to the reasons are Pueblo is closer than those cool trails on the other side of Colorado and they are almost never muddy. Here, take a look
A Saturday with Community Cycles
Colorado Gravel Project
Some of the best views in Colorado can sometimes only be seen via a gravel road but why are so few cyclist ever seen on them? Let's take Boulder County for example, I would argue that the best ride if you want to relax and soak in the views is WallStreet -> Switzerland Trail. Also don't forget the extreme popularity of the Boulder Roubaix which too takes place largely on gravel roads. For those who love everything just mentioned then check out the Colorado Gravel Project!
Lastly today comes from way outside the 303 but since we have Lance has a Colorado connection it's worthy. This video gives you a front seat in the team car of Radio Shack and how they deal with the crash Lance had in ToC. It's very interesting IMO.