Gregory Canyon Trailhead Baseline Rd. Boulder, CO 80302 303-441-3440 https://bouldercolorado.gov/osmp/gregory-canyon-trailhead Trail: Bike, Hike, Picnic, Walk Many trails of varying difficulty go through the canyon. Upcoming Events No events in this location 0 Comments Submit Comment / Photo Cancel replyYou must be logged in to post a comment.