THURSDAY, SEPTEMBER 25
All About Headsets. 5:30 p.m. Community Cycles, 2805 Wilderness Place, Suite 1000, Boulder, 720-565-6019. Registration required.
Front Range Climbing Stewards — Royal Arch Trail Work. Through November, with Front Range Climbing Stewards, www.boulderclimbingcommunity.net to sign up.
Almost Ablaze — From Teton Gravity Research. Doors 6:30 p.m. Boulder Theater, 2032 14th St., Boulder, 303-786-7030.
Thru-Hiking the Pacific Crest Trail. 8 p.m. Neptune Mountaineering, 633 South Broadway, Boulder, 303-499-8866.
SATURDAY, SEPTEMBER 27
Nature for Kids & Parents: Black Bear’s Autumn. 10 a.m. Chautauqua Ranger Cottage, 900 Baseline Road, Boulder, www. naturehikes.org.
National Public Lands Day. Find a volunteer project at www.publiclandsday.org.
SUNDAY, SEPTEMBER 28
Fire on the Mountain — Learn about the role of fire in ponderosa pine ecosystems. 10 a.m. Bald Mountain Scenic Area, Five miles west of Boulder on Sunshine Canyon Drive, Boulder County, 303-678- 3214.
TUESDAY, SEPTEMBER 30
Deraillieurs and Shifting. 5:30 p.m. Community Cycles, 2805 Wilderness Place, Suite 1000, Boulder, 720-565- 6019. Registration required.
International & Adventure Travel Basics. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
Mediterranean Diet: European Secrets of the Super Health. 7 p.m. Changes in Latitude Travel Store, 2525 Arapahoe Ave., Boulder, 303-786-8406.
Pretty Faces: Story of a Skier Girl — World premiere. Doors 6:30 p.m. Boulder Theater, 2032 14th St., Boulder, 303-786-7030.
WEDNESDAY, OCTOBER 1
Trailside Maintenance. 5:30 p.m. Community Cycles, 2805 Wilderness Place, Suite 1000, Boulder, 720-565- 6019. Registration required.
To list your event, send information to: [email protected]. attn: “Adventure.”