There is a log 2/3 of the way across the Crystal, about 1 mile below
Marble. It spans from the left shore to an obvious root ball about
1/3 from the right shore. At today's water level (1500 cfs) YOU CANNOT
SEE IT until you're right on top of it. It kind of hides between the waves,
right on the surface. The good news is it will not kill you, because it
is clear underneath and you will flush out. I could not see if the channel to the right of the root ball is runnable, and there are few eddies to help you once you see it.
See the full story here: https://mountainbuzz.com/viewtopic.php?t=5046