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Road cycling routes

Eldorado Springs

Flagstaff Road Scenic Drive – Gross Reservoir loop from Marshall

Road cycling routes

Eldorado Springs

Flagstaff Road Scenic Drive – Gross Reservoir loop from Marshall

Hard

4.6

(6692)

8,670

riders

Flagstaff Road Scenic Drive – Gross Reservoir loop from Marshall

03:27

56.0km

1,440m

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 accessible with public transport.

Last updated: August 12, 2026

Tips

The surface for a segment of your route may not be suitable

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

After 29.5 km for 581 m

Waypoints

A

Start point

Bus stop

1

8.37 km

NCAR Vistors Center

Highlight • Monument

After a nice little climb just outside Boulder, warm up or cool down at the NCAR visitors center. Enjoy great views and learn about atmospheric research. Then it’s time for …

Tip by

14.6 km

Tour Stop 40

Viewpoint

3

15.8 km

Flagstaff Road Scenic Drive

Highlight (Segment) • Viewpoint

The road up Flagstaff from Chautauqua to Chapman Drive, where you can continue to Artists Point overlooking Boulder, is an iconic Boulder climb. This fun, twisting road (whether you ride …

Tip by

4

20.4 km

Super Flagstaff Summit

Highlight (Segment) • Climb

Super Flagstaff, or more commonly, "Super Flag," is the name of the tough climb from intersection of the road to the Flagstaff amphitheater and Artist's Point, and Chapman Drive to …

Tip by

5

29.7 km

Gross Reservoir

Highlight • Lake

Gross Reservoir is a large lake on the other side of Flagstaff Mountain. There is a hard-packed gravel road on it's eastern shore which is a great place to snap …

Tip by

B

56.0 km

End point

Bus stop

Way Types & Surfaces

Way Types

30.1 km

25.2 km

559 m

122 m

< 100 m

Surfaces

50.6 km

4.77 km

619 m

< 100 m

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Elevation

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

Highest point (2,380 m)

Lowest point (1,630 m)

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Weather

Powered by Foreca

Today

Sunday 11 October

28°C

15°C

13 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

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