Green Mountain via Gregory Canyon Hike

This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
This reflects the return distance of this route as measured by the GPS file.
8.7 km
This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
722 m
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Directions to Trailhead

The Green Mountain via Gregory Canyon Hike is an awesome excursion through the foothills. Adventure through ponderosa pines, sandstone outcroppings, and meadowlands up to the summit. Hike atop Boulder’s famous landmarks and revel in views of the Front Range snow-capped peaks in the west and sights of the cityscape in the east.

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Route Description for Green Mountain via Gregory Canyon Hike

The Green Mountain via Gregory Canyon Hike is an epic expedition through a forested canyon up to the summit of Green Mountain. Located so close to the city’s center, this path is a crowd favorite amongst locals and tourists alike. If you are seeking a secluded adventure, then we urge you to consider another trek or hike in the early morning on weekdays. When hiking this path in the winter, be sure to strap on some crampons to help safely navigate the likely icy and snow-packed terrain.

Hike among like-minded individuals up to one of Boulder’s prominent peaks along Green Mountain via the Gregory Canyon Trail. Departing from the trailhead, track southwest along the Gregory Canyon Trail. Ascend the forested canyon, keeping an eye out for moose. Eventually, you will encounter an intersection, here keep left and track along the Ranger Trail. The Ranger Trail will lead you up an increasingly exposed terrain as you near the summit.

Eventually, you will merge onto the Green Mountain West Ridge Trail. This path will guide adventurers up to the summit which reveals 360-degree panoramic views of the surrounding wilderness. In the west, notice the snow-dusted peaks that flank the verdant foothills and Boulder’s cityscape in the east. Appreciate the vistas and when you are ready, simply retrace your footing along the path back to the trailhead.

Getting to the Green Mountain via Gregory Canyon Hike Trailhead

The Green Mountain via Gregory Canyon Hike departs from the Gregory Canyon Trailhead off Gregory Canyon Road.

Route Information

  • Backcountry Campground


  • When to do


  • Pets allowed

    Yes - On Leash

  • Family friendly

    Older Children only

  • Route Signage


  • Crowd Levels


  • Route Type

    Out and back

Green Mountain via Gregory Canyon Hike Elevation Graph

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Green Mountain via Gregory Canyon Hike Reviews

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