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Posted on: January 17, 2019

Peaks to Plains Trail Mouth of the Canyon Project

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Jeffco Open Space is pleased to announce the upcoming Mouth of the Canyon segment of the Peaks to Plains Trail. This 1.75-mile segment within Clear Creek Canyon will extend east from Tunnel 1 along US Highway 6 and connect to the existing trail in Golden. 

Mouth of the Canyon Project

In addition to the 1.75 miles of new Peaks to Plains trail, the project will also include two developed trailheads with amenities, two new bridges, and design work for improvements and restoration of approximately 1.5 miles of the Welch Ditch trail, including 0.5 miles of the historic wooden flume. The wooden flume is currently closed to visitors but will be open to the public after the repairs are completed. The restored trail along the Welch Ditch flume will be hiker-only.

Project complexities include steep canyon walls, a narrow trail corridor, sensitive riparian areas, the creek, historic structures, challenging access, minimizing impacts to our visitors, and the Ute Ladies’ Tresses Orchid—a federally threatened species.

View video about the Mouth of the Canyon Project

Peaks to Plains Trail

The vision for the 65-mile-long Peaks to Plains Trail is that it will one day connect the South Platte Trail in Denver to Loveland Pass and then westward all the way to Glenwood Springs. Once completed, it will serve more than 3 million Front Range residents, connecting four counties and seven cities, with a total elevation gain of more than 1 mile. The first portions of the Peaks to Plains Trail in Clear Creek Canyon Park opened in 2016 and 2017, offering four miles of 10-foot-wide paved surface right along Clear Creek. The next step will be continuing the trail east to Golden with the Mouth of the Canyon segment.

This legacy trail project will offer visitors a truly quintessential Colorado experience and thus, warranted former Governor Hickenlooper’s designation as one of the 16 highest priority trail projects in 2016 through the Colorado the Beautiful Initiative.

Learn more about the Peaks to Plains Trail


Jeffco Open Space was founded as a land conservation organization in 1972. Our mission is to preserve open space and parkland, protect park and natural resources, and provide healthy, nature-based experiences. Funded with a one-half of one percent sales tax, our organization contributes to city and park district projects, has preserved more than 54,000 acres, and manages 28 open space parks and more than 258  miles of trails in Jefferson County, Colorado.


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