Hoping to do this again this spring. Did it in 2017 fully loaded:
https://ridewithgps.com/routes/23254899?beta=false
Same for this:
https://ridewithgps.com/routes/18149964?beta=false
The descent from the first pass has double digit grades. The second pass is 3 miles of dirt/gravel up and 3 miles of dirt/gravel down. The final 3 miles of the third pass are mean after coming all that way.