Pat from Indiana on 10/18/2020 7:53:26 PM:
Our last leg this past week was from Marthasville to St. Charles. As stated, we did encounter not just the rock slide, but just before that, a bridge out, large tree across the trail, and then the rock slide...all within about 300 yards. Managed to negotiate our way around each of them.
For the rock slide, although there is no recommended detour, it can be fairly easily negotiated (my directions are West to East). As soon as you roll up to the rock slide, there are a few medium sized boulders forming a 'chute' to the right of the trail. If you can lift your bikes down those few rocks, you will see a leafy path thru the woods to follow for maybe 40-50 yards to get back to the trail. We did it without much issues on Tuesday, 10/13 this past week.