September 15, 2013
One of my favorite rides in CO. Not a lot of singletrack for the mileage, but lots of history and great views. Rated at 4 due the narrow and primitive singletrack. The trail is very faint in places, however it's not overly technical at all.
For another variation with a bit more history, take a left on Williams Pass, cross the continental divide, then climb up to the Alpine Tunnel from the West.