"Non-stop epic views and rolling terrain" is the claim, and I agree wholeheartedly. This ride takes place in one of my favourite regions, near the Cascade Mountains and through central Washington state.
Two routes are available, the 90 mile route with over 6200 ft of vertical gain is shown. Some gravel involved, approximately 25 miles, so be prepared! This one promises to be quite the adventure, I recommend reading the write-up on the event site to truly appreciate the difficulty and varied challenges involved.
Wind: 13 to 21 km/h winds with gust up to 34 km/h
Precipitation: 8% probability of very light precipitation