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Routes
Running trails & routes
United States
Colorado
Boulder County
Boulder

Boulder Reservoir loop

Routes
Running trails & routes
United States
Colorado
Boulder County
Boulder

Boulder Reservoir loop

Intermediate

158

runners

Boulder Reservoir loop

00:57

8.50km

30m

Intermediate run. 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: December 26, 2024

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Waypoints

A

Start point

Parking

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1

185 m

51st Street

Highlight (Segment) • Cycleway

This section of 51st Street from the main Boulder Reservoir parking area to the Eagle Trail Trailhead (which is also where 51st turns into 55th street) is a fun section …

Tip by

2

2.78 km

Boulder Reservoir

Highlight • Lake

Boulder Reservoir is sustained by two interconnecting dam walls. The water is open to fishing and swimming (in certain areas), and the trails around the lake are used heavily by …

Tip by

3

5.35 km

Coot Lake

Highlight • Lake

Coot Lake lies to the north of Boulder Reservoir. The Boulder Reservoir Trail cuts between the two bodies of water and offers access to both.

Tip by

B

8.50 km

End point

Parking

Way Types & Surfaces

Way Types

3.66 km

2.73 km

1.13 km

979 m

Surfaces

4.40 km

3.01 km

1.08 km

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Elevation

Elevation

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Weather

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Today

Sunday 26 October

20°C

6°C

0 %

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Expert
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Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
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Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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How to understand each route’s difficulty level

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Mountain Bike

Road Bike

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Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
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Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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Intermediate
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Road Bike

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Easy
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Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
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Expert
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Mountain Bike

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Easy
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Intermediate
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Expert
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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