What Walk & Bike to Work Day Is — and When in 2026 On Wednesday, June 24, 2026, from 6:30 to 9:00 a.m., Boulder runs its biggest cycling morning of the year: Walk and Bike to Work Day. It lands on the fourth Wednesday of June, the date the regional event has held to annually, and it is the headline event of Walk & Bike …

Goose Creek Path: Following North Boulder's Hidden Waterway The trailhead at East Mapleton Park and Ball Fields, 2838 Mapleton Avenue looks like an unremarkable park entrance off a residential street — but step onto the path and you're at the western terminus of one of Boulder's most practical car-free corridors: the …

Wonderland Lake: The Reservoir That Became a Wildlife Sanctuary Standing on the earthen dam at the south end of Wonderland Lake on a clear morning, you are looking at the northern geographic anchor of the 80304 zip code — a shallow foothills reservoir that began as an irrigation impoundment in the early twentieth …