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Sterns Lake – Aquarius Open Space loop from 119th St & Pioneer Pl

Routes

Bike touring routes & trails

Sterns Lake – Aquarius Open Space loop from 119th St & Pioneer Pl

Moderate

4.8

(9590)

10,869

riders

Sterns Lake – Aquarius Open Space loop from 119th St & Pioneer Pl

02:52

46.4km

200m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: July 1, 2026

Waypoints

Start point

Bus stop

Get Directions

5.38 km

Coal Creek Trail

Highlight (Segment) • Trail

The Coal Creek Trail is a long double track trail that runs between the towns Superior, Louisville, Lafayette and Erie. It's an easy, beginner ride perfect for those interested in riding off road.

Tip by

7.70 km

Erie Commons

Highlight • Rest Area

One of the many family friendly parks off the Coal Creek Trail alternate paths, there is an excellent playground and plenty of open space for a wonderful picnic.

Tip by

13.3 km

View of Longs Peak

Highlight • Viewpoint

If the weather is clear enough, when you look west-northwest from here you can see Long's Peak against the horizon.

Tip by

22.3 km

Sterns Lake is a small lake in the Carolyn Holmberg Preserve at Rock Creek Farm which is well-known for the birding opportunities (especially the Bald Eagles in the winter) and accessible via gravel roads that are open for walkers, joggers, and bikers.

Tip by

22.8 km

Bald Eagle Nest Viewing Area

Highlight • Viewpoint

After losing their nest to a lightning strike in August, it was unclear which location the eagles would choose for their to new nest. With limited suitable nesting trees in the area—including one along the trail near their previous nest—they have now settled in a tree here, near the southern end of S. 104th St.

Tip by

27.0 km

Aquarius Open Space

Highlight • Trail

Aquarius Open Space is crossed by many trails, being the main one "Coal Creek Trail". There's a parking lot on the southeastern part, although you can access the area by any of the trails that go through it.

Tip by

28.5 km

Adler-Fingru Open Space

Highlight • Natural

Adler-Fingru Open Space is a 55.7-acre area that was once used for crop production and livestock grazing. Ownership of the space is divided three ways among the cities of Boulder, Louisville, and Lafayette. This property is under an agricultural lease, so access to the public is limited to only the Coal Creek Trail that passes through the space.

Tip by

30.9 km

Warembourg Open Space

Highlight • Trail

Warembourg Open Space, shaped through acquisitions in 1999 and 2003 by Boulder County, Louisville, and Lafayette, is a haven for nature enthusiasts. Nestled along Coal Creek and the Coal Creek Regional Trail, this space offers a riparian habitat, creating an immersive biking experience through a landscape shaped by collaborative conservation efforts.

Tip by

46.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

21.5 km

17.7 km

3.70 km

2.16 km

1.36 km

Surfaces

24.3 km

14.4 km

6.34 km

1.34 km

Elevation

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

Highest point (1,630 m)

Lowest point (1,530 m)

Weather

Today

Friday 17 July

34°C

17°C

0 %

Additional weather tips

Max wind speed: 14.0 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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Sterns Lake – Aquarius Open Space loop from 119th St & Pioneer Pl

Coal Creek Trail

Erie Commons

View of Longs Peak

Sterns Lake

Bald Eagle Nest Viewing Area

Aquarius Open Space

Adler-Fingru Open Space

Warembourg Open Space

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