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Routes
Road cycling routes
United States
Colorado
Boulder County
Altona

Jamestown Mercantile Café loop from Altona

Hard

3.3

(21)

51

riders

Jamestown Mercantile Café loop from Altona

03:49

67.8km

1,260m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.

Last updated: June 8, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 0 m for 126 m

After 19.7 km for 3.52 km

After 67.7 km for 126 m

Waypoints

A

Start point

Parking

Get Directions

1

7.91 km

James Canyon Drive (Lefthand Canyon to Jamestown)

Highlight (Segment) • Climb

After veering off of Lefthand Canyon onto James Canyon Drive, you can enjoy a long climb up (or fast, fun descent down) a road with a wide shoulder between steep …

Tip by

2

12.7 km

Jamestown Mercantile Café

Highlight • Cafe

The Jamestown Mercantile is a cute, cyclist-friendly cafe in a historic building. There is outside seating both right out front and across the road in the park. They have an …

Tip by

3

13.0 km

Super James (Jamestown to end of pavement)

Highlight (Segment) • Climb

The "Super James" climb is one of the more notorious climbs in the area. Super James from Jamestown consists of about 1,800 of climbing in 6 miles with an average …

Tip by

4

19.8 km

This final section of the notorious Super James climb is on gravel. In comparison to the previous section of Super James from Jamestown, this final push up to the Peak …

Tip by

B

67.8 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

30.2 km

24.9 km

11.4 km

1.26 km

< 100 m

Surfaces

54.0 km

10.1 km

3.50 km

166 m

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Elevation

Elevation

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

Highest point (2,670 m)

Lowest point (1,610 m)

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Weather

Powered by Foreca

Today

Wednesday 22 July

31°C

17°C

87 %

Additional weather tips

Max wind speed: 7.0 km/h

to get more detailed weather forecasts along your route

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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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