Cottonwood Trailhead 
Independence Rd.
Boulder, CO 80301
303-441-3440
https://bouldercolorado.gov/osmp/cottonwood-trailhead
Trail: Bike, Hike, Picnic, Walk, Water Sports
Cottonwood Trail (1.2 mile) extends north and south from the parking lot. Southward it is hard surface, wheelchair accessible and heavily used by bicycle riders. The path follows the Four-mile Canyon Creek ditch and passes by Hayden Lake (**Please note that this is a private lake) as it heads southwestward to the 47th Street bikeway. North from the trailhead, the path is soft surface, open to bikes, and when dry appropriate to sport chairs. It passes through agricultural grazing lands and over Four-mile Creek to Jay road where the trail ends.