My wife and I found this canyon last week, I had been eyeing it for several months. We hiked the rim and dropped down where we could to check out the rappels, counted 5-6.
Rich and I did this canyon yesterday, it's not spectacular but the raps are from 20'-80'. Access is easy. Canyon can be done in 1 1/2-2 hrs.
There was no sign of previous descent so as usual we'll claim that honor until notified differantly.
Calling it "nuther" canyon