Did my second longest ride ever yesterday... check it out. 140+ miles, nearly 15,000 ft of vert! Solo...http://ridewithgps.com/routes/85624
The route involved doing some single track, fire road, climbing two significant mountains, observing some beautiful wildflowers, consuming lots of snacks (2000+ calories worth), eating a veggie burrito in Livermore, and about 11 hours of riding.
A bit sore today, but not too bad.