Hermosa Diversion Dam NO! NO!
We have deemed 5/14/08 that there is something just below the drop (log?) directing water back toward the pour on the diversion dam toward the end of the Hermosa creek run. It seems a likely piton, vertical pin, or buddha forbid a botched line and sideways entry.
This may prove to be deadly and is certianly not worth the minor thrill. Leave it be with an easy river RIGHT schoolbus sized eddy and disneyland style portage.
I've never boated before, but I have posted a lot on Mountain Buzz!