Here's a recent trip report I stumbled onto:
http://theblack13.blogspot.com/2009/01/sir-please-take-your-spurs-off-before.htmlSounds like he rode south from the Picketpost trailhead on fresh trail (Lee and I rode most of that in the dark, but I do remember the pin flags acting as an invisible guard rail). Then things got derailed and the adventure began.