Summit:
W7O/CN-078
Well, we made it back alive. Bennett Pass Rd/NF-3550 is a single lane (which serves both directions) dirt track.
We had spent the night at Rock Creek CG and thus driving up NF-4860 to the turn at the intersection with NF-3550. There are, however, only 1 or 2 places to turn around after that. We had to digg (a 4-letter word) through 2 snow banks to gain passage and only saw one other vehicle (a Jeep) on the route. High clearance 4x4 vehicle required on NF-3550.