How to find it

It starts about 100 meters below the high point of Roots. Look for the big wooden sign.

A note on Roots - a lot of work has been done on the old River Road, meaning that one of the best ways to head up Roots and Hypervent these days is to head out along Cokato, turn up the bottom of South Castle, left when you hit the River Road and then drop onto the old River Road when you get to the junction of the two roads. Roots is then just up around the next big corner.

The trail

The trail for the most part is between a 10 to 15% grade. Near the beginning there are a couple of short sections that hit close to 22%...but they are short. The trail is 98% ridable uphill. The switchbacks are a real challenge, but plenty of people make all of them!

There are a couple of options:

1. Ride Hyper Ventilation to the summit 4965 feet and descend down Hyper Extension and then continue down Roots Extension to the Coal Creek bridge.

2. Switch onto the Castle Rocks trail and then down South Castle