THURSDAY, September 5
The Most Difficult Trail in the United States — Hiking the Continental Divide Trail. 7 p.m. Neptune Mountaineering, 633 South Broadway, Boulder, 303-499-8866.
SATURDAY, September 7
Introduction to Outdoor Photography: Composition & Technique Class — With REI Outdoor School instructors. 8 a.m. White Ranch Park, Crawford Gulch Road, Golden, www.rei.com.
Hard Rock Mining Tour — Towns, tools and characters of local hard rock mining heritage. 10:25 a.m. Meeting location provided with registration. Boulder County, 303-776-8848.
Waneka Classic 5K Fun Run. 7:30 a.m. Waneka Lake, 1600 Caria Drive, Lafayette, www.centaurustcc.org.
TUESDAY, September 10
How to Climb a 14er. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
India: A Kaleidoscope of Spirit. 7 p.m. Changes in Latitude Travel Store, 2525 Arapahoe Ave., Boulder, 303-786-8406.
WEDNESDAY, September 11
Exploring La Ventana — With Chris Van Leuven. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
To list your event, send information to: email@example.com. attn: “Adventure.”