Beginning Friday, Boulder will open its new Anemone Loop Trail on weekday evenings and weekends.

Boulder Open Space and Mountain Parks began construction of the 3-mile trail in May 2020 and expects to complete work in early 2022, assuming weather is favorable.

According to a city news release, the project included building an “approach trail” leading to a 2.2-mile loop and two short trails with scenic viewpoints; constructing 416 stone steps and 1,200 square feet of rock retaining walls; and using a helicopter to haul more than 85 tons of rock and building materials to the trail site.

The trail will remain closed from 5 a.m. to 5 p.m. Monday through Friday as the project continues. It will be open after 5 p.m. Monday through Friday and all day on Saturday and Sunday.

Visit to view the new trail, which can be accessed from the Centennial or The Peoples’ Crossing trailheads.