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United States

Colorado

Boulder County

N. 39th/41st Street (Gravel) loop from Lefthand Trailhead

Routes

Running trails & routes

United States

Colorado

Boulder County

N. 39th/41st Street (Gravel) loop from Lefthand Trailhead

Hard

4.8

(5850)

18,509

runners

N. 39th/41st Street (Gravel) loop from Lefthand Trailhead

02:17

21.6km

170m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 17, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Boulder Open Space and Mountain Parks

Waypoints

Start point

Parking

Get Directions

1.91 km

Oxford Road (Gravel between 41st and Ouray)

Highlight (Segment) • Cycleway

Oxford Road is a smooth gravel road that runs east to west with many popular gravel and pavement roads intersecting it. This particular stretch of road is also a part of the Boulder Roubiax, a popular road/ gravel race in Boulder. The Roubaix actually starts on the western terminus of Oxford as is runs into N. 41st Street.

Tip by

12.1 km

N. 39th/41st Street (Gravel)

Highlight (Segment) • Cycleway

This scenic segment of smooth, well-graded gravel connects Oxford Road with Nelson Road. This is a great stretch of road with rolling hills and scenic views of the foothills and to the often-snowcapped mountains the west and Table Mountain and rural farms and houses to the east.

Tip by

17.3 km

N. 19th Street (Gravel between Niwot and Oxford)

Highlight (Segment) • Trail

This short gravel road is a nice way to connect Niwot Road to Oxford Road, where the Boulder Roubaix starts and ends, and other very popular gravel roads between Boulder and Hygiene. You pass by some beautiful farms and get great views of the foothills to the west.

Tip by

19.8 km

View of Haystack Mountain and Farms

Highlight • Viewpoint

As Niwot turns into Neva Road, you get fantastic views of Haystack Mountain to the east, a small, but prominent hill that resembles a rounded haystack, and of the foothills to the west. You are surrounded by picturesque farms, and on the Haystack side in particular, there are frequently very cute cows out grazing.

Tip by

21.6 km

End point

Parking

Way Types & Surfaces

Way Types

16.7 km

4.43 km

235 m

166 m

< 100 m

Surfaces

13.4 km

6.17 km

1.66 km

311 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (1,690 m)

Lowest point (1,600 m)

Weather

Today

Sunday 12 July

36°C

16°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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N. 39th/41st Street (Gravel) loop from Lefthand Trailhead

Oxford Road (Gravel between 41st and Ouray)

N. 39th/41st Street (Gravel)

N. 19th Street (Gravel between Niwot and Oxford)

View of Haystack Mountain and Farms

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