Flagstaff Trail to Halfway House Trail (Boulder Star)

You can either start the from the Gregory Canyon Trailhead or the main Chautauqua trail.  At the Chautauqua trailhead you will need to pay for parking on Saturdays and Sundays and at the Gregory Canyon Trailhead you will need to pay for parking if your car is not registered in Boulder. If you start from Chautauqua, start on the main trail and take the first branch off to the right and continue...

Green Mountain via Gregory Canyon and Ranger Trail: Boulder's Classic Summit Hike Green Mountain via Gregory Canyon and Ranger Trail is an out-and-back trail that provides a good opportunity to view wildlife located near Boulder, Colorado. This classic Boulder hike offers a challenging workout with rewarding summit views, abundant wildlife sightings, and convenient access from downtown Boulder...

Royal Arch Trail climbs up Boulder's famous Chautauqua Park to an archway formed by sandstone rocks that tower over thirty feet high. Start at the Chautauqua Trail Station by the Ranger Station, and continue up Bluebell Road for 0.7 miles. You will then arrive at a more forested area, where you will head south, following the signs for the Royal Arch Trail for 0.2 miles. The trail will steepen...

Starting from the popular Chautauqua Park trailhead, head west on the main trail to the first branch off onto a smaller trail that will take you toward Baseline Road. Follow this trail until it eventually connects with Gregory Canyon Trailhead—you can park at this trailhead if you wish, but miss out on view of the Flatirons. Head out on the main Gregory Canyon trail that heads due west into th...

Beginning at the Chautauqua Trailhead, the Chautauqua Trail goes for 0.6 miles before connecting with the Bluebell-Baird Trail. From here it becomes a choose-your-own-adventure hike. For a short, simple hike you can do with people who aren't ready for lots of elevation gain, take a right and connect with the Ski Jump Trail that connects back to the beginning of the Chautauqua Trail. It is possi...

Starting at the ever-popular and ever-populated Chautauqua Trailhead, take the main trail (a highway version of a dirt trail) straight towards the Flatirons. Continue going straight passed the Ski Jump trail to your right (0.2 mi.), then at a crossroads with the Bluebell-Baird trail (0.3 mi.) turn right onto the 1st/2nd Flatiron trail (0.7 mi.). Follow this trail over a rock slide, twice, and p...