North Boulder Valley

Difficulty
This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
Easy
Duration
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.
1.5-2.5h
Distance
This reflects the return distance of this route as measured by the GPS file.
15.0 km
Elevation
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.
113 m
User Ratings
These ratings are completed by users who have completed this trail and not subject to reviews by 10Adventures.
Overall Rating
This is the average user-submitted overall rating on a scale of 1 to 10, with 10 being the highest.
8.3
Physical Difficulty
This is the average user-submitted rating on the physical difficulty of this route. In general, green is beginner, blue is intermediate, black is advanced/most difficult and double-black is expert-only. It is recommended that users build up to black and double-black routes.
Easy (Circle)
Suitable for beginners, families, young children, and those looking for a casual adventure.
Technical Difficulty
This is the average user-submitted rating on the technical difficulty of this route. In general, green is beginner, blue is intermediate, black is advanced/most difficult and double-black is expert-only. It is recommended that users build up to black and double-black routes.
Easy (Circle)
Suitable for beginners, families, young children, and those looking for a casual adventure.
Read Reviews
Directions to Trailhead
Panorama on North Boulder Valley mountain biking trail near Boulder, Colorado

North Boulder Valley is a fun cross-country trail perfect for ripping around on your gravel grinder or cross bike. We love it because it is pretty much accessible year-round, with few trees and lots of sun exposure it dries out fast and its quick to get to if you don’t have a lot of time!

Download the 10Adventures App

View North Boulder Valley on Map

View Map

Join our newsletter

Get a weekly dose of discounts and inspiration for adventure lovers

Route Description for North Boulder Valley

North Boulder Valley is a combination of single track and gravel trails that are perfect for ripping around on your gravel grinder or cross bike. If the flat gravel track isn’t enough for you, there is always a single-track trail next to the gravel path.

From the Eagle Trailhead, you will start on a flat gravel trail, Eagle Trail, towards Boulder Valley. At a junction, drop down onto Sage Trail to loop around Boulder Valley. Sage Trail will eventually meet back up with Eagle Trail at the Boulder Valley Ranch Trailhead parking.

From here, you will want to hop on Left Hand Trail which is a great out-and-back single-track trail that cruises around Left Hand Valley Reservoir. Left Hand Trail will dead-end into a parking lot on Neva Rd. Turn around and retrace your tracks back to Eagle Trail.

Complete the loop around Boulder Valley by taking the section of Eagle Trail you skipped when you hopped on Sage Trail, returning to the trail junction for both. Make your way back to Eagle Trailhead as you blast back down the flat gravel trail.

Insider Hints for North Boulder Valley

  • Trail can be extended by connecting into the trails that circle Boulder Reservoir.
  • Check Boulder Trail conditions here.

Getting to the North Boulder Valley Trailhead

Parking is at Eagle Trailhead, west of Boulder Reservoir along 55th street.

Route Information

  • Route Signage

    Good

  • Crowd Levels

    Moderate

  • Route Type

    Out and back

North Boulder Valley Elevation Graph

Weather Forecast

Check Area Weather

North Boulder Valley Reviews

Add a comment

You must be logged in to post a comment.

Nearby Trails

Nearby Regions

Get travel inspiration and discounts

Join our weekly travel newsletter