Does anyone have any beta on Cataract Canyon on the Colorado in Utah? I'm planning on doing it the last week in March. Flows? Time on river from potash to hite? New rapids with Powell so low?

Mainly, I need to know the difficulty of the river during that time of the year. Is it really solid class IV? I'm leading a trip for my college outdoor program and I need to persuade the director that its managable.

If you know anyone that has any experience on that stretch, especially during late March, I'd like to know a way to contact them as well.

Cheers!
Sean