Got out this afternoon and ran Bunce. These are the logs Matt mentioned having been placed by the side-by-side groups at the meadow where the drifts always form.
So I moved them and continued on..
I was able to make it over the first drift relatively easy, but once I lost speed I sank quick and was going nowhere. There was another 100 or so yards of drifts that would have been doable with LOTS of winching, but I bailed here. I couldn't get moving to turn myself around so I threw my winch on the back and winched myself backwards up over the drift.
Put the logs back when I was done. Thought I was going to have to winch them out of my way initially, but I was able to move them by hand so I played nice.