THURSDAY, MARCH 21
The North Pillar Sit Start on Fitzroy and Other Vertical Adventures — With Cheyne Lempe. 8 p.m. Neptune Mountaineering, 633 South Broadway, Boulder, 303-499-8866.
The Sport of Orienteering. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
FRIDAY, MARCH 22
Pastries on the Path. 8 a.m. Boulder Creek Path at 17th Street, Boulder, www.communitycycles.com.
SUNDAY, MARCH 24
The Language of the Landscape — Hike with Boulder County naturalist Lynne Sullivan. 10 a.m. Chautauqua Ranger Cottage, 900 Baseline Road, Boulder, 303-678-6214.
TUESDAY, MARCH 26
Bike Maintenance Basics. 6:30 p.m. REI Store, 1789 28th St., Boulder, 303-583-9970.
Running for Brews. 6 p.m. Walnut Brewery, 1123 Walnut St., Boulder, www.runningforbrews.com.
WEDNESDAY, MARCH 27
Geologic History of Boulder County. 7 p.m. Boulder Public Library George Reynolds Branch, 3595 Table Mesa Drive, Boulder, 303-678-6214.
Wednesday Fun Run. 6 p.m. Boulder Running Company, 2775 Pearl St., Boulder, 303-786-9255.
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