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United States
Colorado
Boulder County
Boulder

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

Routes
Running trails & routes
United States
Colorado
Boulder County
Boulder

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

Expert

145

runners

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

01:39

10.7km

430m

Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: December 26, 2024

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Waypoints

A

Start point

Bus stop

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1

3.44 km

The Rocks

Highlight (Segment) • Climb

This section up or down Mount Sanitas gets very technical with lots of rock scrambles.

Tip by

2

3.73 km

Mount Sanitas

Highlight • Summit

One of the most famous trails in downtown Boulder is known for its challenging terrain and easy accessibility, making it a popular choice amongst hikers in the region. To ensure a satisfying experience, it's crucial to begin your run early.

Tip by

3

4.01 km

Lion's Lair Trail

Highlight (Segment) • Trail

The 'quiet' side of Mt. Sanitas, but why? What a fantastic trail! And if you run down this side you connect back on the road (sunshine canyon drive) pretty easily. It's usually not the busiest road, but be careful! :)

Tip by

4

7.70 km

Lion's Lair Trailhead

Highlight • Trail

There's not really parking available, but this is the trail head of Lion's Lair leading you to Mt. Sanitas. We love this side of Mt. Sanitas, because it's quieter and it makes a nice loop from the other side.

Tip by

5

9.94 km

Red Rocks

Highlight • Natural Monument

There are a lot of different views on the Red Rocks trails. The red sandstone rock formations in the area are what give this system the name Red Rocks Trail.

Tip by

B

10.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

5.78 km

3.96 km

431 m

383 m

147 m

Surfaces

4.95 km

2.97 km

1.73 km

509 m

376 m

167 m

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Elevation

Elevation

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Today

Tuesday 4 November

23°C

6°C

0 %

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Expert
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How to understand each route’s difficulty level

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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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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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