This ride by Cascade Bicycle Club is listed with the following description:

High Pass Challenge (Sept. 13, since 2007)
• A very hard 114 mile ride from Packwood, WA to Mt. St. Helens Windy Ridge lookout. This is for experienced. riders who like to climb. Limit: 600 riders.

My question: Has anyone done it? If so, what are the grades like? Pretty steady? Or any sections really steep...above 10-11%?

Thanks