I'm not sure how steep that slope is to be honest. Pretty much all I had was a direct head on view and it's nearly impossible to tell slope angle when looking head on. There's lots of slopes around that are 40 degrees or less that appear damn near vertical when looking at them head on.
One thing I can just about guarantee you is that slope isn't nearly as steep as it looks in those pictures. I'd be very surprised if it was more than 45 degrees. Probably closer to 40.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz