Having moved to Santa Rosa from Boulder, I am very familiar with Flagstaff Mountain. It's a very popular climb for local riders. At 3.7 miles long with 1,174 vertical feet of climbing, it is not unlike a number of climbs in Sonoma County. What happened to this ex-professional cyclist on Flagstaff yesterday illustrates the need to always be aware of where you are on the road and reinforces the need not to drift toward the midline on descents...

http://www.dailycamera.com/news/boulder/ci_29644529