Hmm well, we have this at Mammoth. Gives all the angels. Steepest being 53 degrees.
But here, black diamonds are around 32- 38 degrees and the doubles go from 38 to 53 degrees. But the two spots that hit that are GNARLY and make me want to shit my pants every time I even make a slight consideration of venturing that way. I've only skied 1 of the 2 and thought I may die. Wasn't as much the steepness as it was the terrifying chutes and inability to see if I was about to hit a drop or not. Probably won't happen again in the near future.
I'd actually like to know what resorts outside of Mammoth/Jackson/Silverton/Tahoe/CB/Telluride have a decent amount of terrain pushing the 40 mark. Let's talk about that. I need a place to vacation this winter. I was thinking Baker, but I'd be interested to know if there are some smaller Utah/WA/MT/whatever resorts that are crazy. I've heard good things about Revelstoke, super interested in that one as well.