Riding the PBT ccw, found that its all ridable and easy to follow thru the burnt parts... the burnt parts (whether from pre-burns, back burns, or big burns) are: from the StumpDump to the ghost town of Mount; and on the north side, from the Mount-Sandy Ridge Road crossing to Quaker Bridge Road.
If there is an upside to these burns, its that the brushy thorny section, south of Mount, that we have to brush out every 12 to 18 months to keep ridable, should be clear and ridable for at least 2 yrs.