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Trip Details

Date Saturday  2/8/2020
End Date
Group Denver
Event Title Boulder Skyline Traverse (northbound)
Start Time 6:00 AM
Status Complete
Leader Sheryl Lampert
Member Price Free
Available Participants Full- Join Waitlist
Type Trip
Trip Type Hike
Classification Moderate D
Trail Mileage 16
Elevation Gain 5400
Driving Distance 40


Boulder Skyline Traverse (northbound) over five tall peaks in Boulder, CO. South Boulder Peak - Bear Peak - Green Mountain - Flagstaff Mountain - Mount Sanitas

For more info Contact

Trip Leader: Sheryl Lampert


This is a training hike for 2020 Denver HAMS students. 

Please be prepared for snowy conditions. This will be a long day. Peak appropriate gear: 

  • 10 essentials

  • Microspikes

  • Poles (optional but recommended)

  • Plenty of food and water

  • Radios, if you have them

We will hike northbound starting at the South Mesa Trailhead hiking South Boulder Peak - Bear Peak - Green Mountain - Flagstaff Mountain - Mt Sanitas ending at Lion's Lair Trailhead, exchanging keys with southbound group. 

From the South Mesa Trailhead, head up Mesa Trail for 1.5 miles, left onto the steep and rocky Shadow Canyon trail to gain 1600'. At the top the junction of Bear Peak Trail, turn left and climb another 500' towards South Boulder Peak. It's a short scramble to the top.

Head back to the junction and continue up Bear Peak Trail about .6 miles and scramble to the top of Bear Peak.

Backtrack a short distance and take the Bear Peak West Ridge Trail. After about 1.7 miles, cross Bear Canyon creek. Turn left up the Green-Bear Trail. Following winding trail the summit of Green Mountain. Climb up the summit block to check out the sighting disc and the views of Indian Peaks.

From the summit of Green Mountain, head back down to the west and take the Ranger Trail north to Flagstaff Road. Cross the road and take the Ute Trail up to the summit of Flagstaff. Find the highest point - a molar shaped boulder. 

Head north back to the Ute Trail. Take the Flagstaff Trail down, crossing the road several times, turning left on the Panorama Trail towards the Panorama Point parking area. Take Viewpoint Trail north down to Boulder, entering Eben G Fine Park. Take the path crossing under Canyon Blvd to Settlers Park Trail. Follow Red Rocks Trail to the other side of the hill into Centennial Trailhead parking area. Cross Sunshine Canyon Drive. Climb Mt Sanitas Trail to the summit of Sanitas. 

Continue over to Lion's Lair trail and descend to the Lion's Liar Trailhead.