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United States
Colorado
Boulder County
Boulder

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

Routes
Running trails & routes
United States
Colorado
Boulder County
Boulder

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

Expert

245

runners

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

01:45

10.9km

480m

Expert run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: June 11, 2024

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Waypoints

A

Start point

Parking

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1

734 m

Goat Path Trail

Highlight (Segment) • Trail

Short connector trail from Boulder suburbs to Mount Sanitas Valley Trail.

Tip by

2

1.75 km

The Rocks

Highlight (Segment) • Climb

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

Tip by

3

1.99 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

4

5.97 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

B

10.9 km

End point

Parking

Way Types & Surfaces

Way Types

5.79 km

4.54 km

417 m

169 m

< 100 m

Surfaces

5.63 km

2.97 km

1.73 km

417 m

154 m

< 100 m

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Elevation

Elevation

Highest point (2,060 m)

Lowest point (1,690 m)

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Weather

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Today

Saturday 25 October

21°C

7°C

0 %

If you start your activity now...

Max wind speed: 8.0 km/h

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This route was planned by komoot.

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How to understand each route’s difficulty level

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

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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

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Bike

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.
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.
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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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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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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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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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How to understand each route’s difficulty level

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Intermediate
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Expert
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Road Bike

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Corresponds approx.to SAC 1.
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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.
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Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
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