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Routes
Road cycling routes
United States
Colorado
Boulder County
Altona

Main Street loop from Altona

Hard

3.4

(8)

70

riders

Main Street loop from Altona

04:10

84.5km

1,300m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is right next to a parking lot.

Last updated: August 2, 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 57 m

After 84.5 km for 57 m

Waypoints

A

Start point

Parking

Get Directions
1

13.4 km

Main Street

Highlight (Segment) • Settlement

Lyons is a small town north of Boulder and southeast of Estes Park. There are several cute coffee shops, boutiques, and restaurants on Main Street, which makes it a great …

Tip by

2

42.4 km

Ferncliff Food & Fuel and Payphone

Highlight • Rest Area

The Ferncliff Food & Fuel is a small one-stop-shop in the tiny town of Allenspark. There are bathrooms, a pay phone (!), and plenty of snacks and coffee to purchase. …

Tip by

B

84.5 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

56.2 km

23.0 km

3.43 km

1.89 km

< 100 m

Surfaces

82.5 km

1.90 km

141 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 (2,550 m)

Lowest point (1,610 m)

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Weather

Powered by Foreca

Today

Sunday 11 October

24°C

13°C

21 %

Additional weather tips

Max wind speed: 9.0 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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