Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Running trails & routes
United States
Colorado
Boulder County
Eldorado Springs

Doudy Draw, Spring Brook, & Greenbelt Plateau loop — Boulder Open Space and Mountain Parks

Routes
Running trails & routes
United States
Colorado
Boulder County
Eldorado Springs

Doudy Draw, Spring Brook, & Greenbelt Plateau loop — Boulder Open Space and Mountain Parks

Expert

94

runners

Doudy Draw, Spring Brook, & Greenbelt Plateau loop — Boulder Open Space and Mountain Parks

02:21

19.7km

330m

Expert run. Very 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: August 13, 2024

Download GPX

Save

Move start point

Edit route

Navigate

Send to Phone

Waypoints

A

Start point

Parking

Get Directions

1

9.17 km

Spring Brook loop

Highlight • Trail

The trail is a nontechnical singletrack with amazing views that wraps around the rim of the foothills and dives into the forest on its west side where you can cross the canal and connect to the trails in the Flatirons.

Tip by

2

14.9 km

Flatirons Vista

Highlight • Trail

The trail is aptly named — looking west the iconic silhouettes of the Flatirons loom over the horizon. The trail runs through an open field and is wide gravel. Keep an eye out for prairie dogs!

Tip by

3

17.7 km

Greenbelt Plateau Trail

Highlight (Segment) • Trail

The Greenbelt Plateau Trailhead provides access to the Greenbelt Plateau and High Plains Trails, with a connector to the Flatirons Vista area via Highway 93. The area closes when muddy, …

Tip by

B

19.7 km

End point

Parking

Way Types & Surfaces

Way Types

12.3 km

4.65 km

2.70 km

Surfaces

16.6 km

2.99 km

< 100 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Sign up to see more specific route details

Sign up for free

Weather

Powered by AerisWeather

Monday 27 October

18°C

-2°C

18 %

If you start your activity now...

Max wind speed: 11.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Loading

Nearby routes

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

249

Mount Sanitas via Lion's Lair loop — Boulder Open Space and Mountain Parks

01:45h

10.9km

480m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

5.0

172

North Table Mountain & Tablerock Trail loop — North Table Mountain Park

01:38h

12.4km

270m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

158

Boulder Reservoir loop

00:57h

8.50km

30m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

145

Mount Sanitas loop via Red Rocks — Boulder Open Space and Mountain Parks

01:39h

10.7km

430m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

5.0

121

Walker Ranch Loop trail run — Eldorado Canyon Park

01:43h

12.6km

420m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

118

Mount Sanitas via Goat Path Trail loop — Boulder Open Space and Mountain Parks

01:06h

6.33km

420m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

94

Doudy Draw, Spring Brook, & Greenbelt Plateau loop — Boulder Open Space and Mountain Parks

02:21h

19.7km

330m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

94

Green Mountain Trail Run Loop – William Frederick Hayden Park

01:47h

14.6km

310m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

4.0

77

Green Mountain, Bear Canyon, & Mesa Trail loop — Boulder Open Space

02:41h

17.7km

850m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Expert

3.0

76

Marshall Mesa Trail Run loop — Boulder Open Space and Mountain Parks

02:35h

24.4km

280m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.0

82

Tilting Mesa to Mesa Top loop — North Table Mountain Park

00:43h

5.21km

150m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

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.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

82

McIntosh Lake loop — Longmont

00:37h

5.97km

10m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepacking
B2B
PartnersConnectEmbed routes
Company
PressWhat's NewPioneersProduct UpdatesAmbassadorsAdventure Hub
Community
Help GuidesSupportKomoot Treasure Hunt
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy
Terms of Service
Community guidelines
Vulnerability disclosure program
Imprint
Information for law enforcement