Comments:
Segment appears to have had a series of stepped beaver ponds, or possibly some of human construction: several pieces of wooden structures found but use not recognizable; no records found on old maps, no sources yet located with any knowledge of what these were. Ponds appear to have drained through the bottoms of the dams (or elsewhere) as opposed to being breached; none are active in this segment, though beavers are still active in next segment downstream. Stream is incising rapidly through legacy sediments, and a headcut is migrating upstream from the location of the most upstream of these structures.