May 5, 2019 @ 8:00 am – 11:59 pm
El Cinco de Grindo
A free, backcountry adventure ride around Boulder County, with five unique checkpoints to boot!
Git ready for around 55 miles and 7K of climbing on Road, Gravel, Double and Singletrack!
Saturday, May 5th, 8:00am
Cruiser Boutique/Kettle and Spoke Brewery, Boulder (https://goo.gl/maps/EKYQsdtbULJ2)