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Routes
Running trails & routes
Sweden
Västra Götaland
Lerum

Härskogen Loop

Hard

3.0

(1)

3

runners

Härskogen Loop

02:27

20.6km

210m

Running

This difficult 12.8-mile jogging loop from Kolboryd takes you through forest trails and past lakes in Härskogens Naturreservat.

Last updated: February 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Härskogens naturreservat

Waypoints

A

Start point

Parking

Get Directions

1

5.49 km

Forest trails

Highlight • Trail

The Stamsjöleden trail meanders through a variety of terrains; open and dense forests, deciduous and coniferous woodland, as well as areas of new and old clear-cuts.

Tip by

2

6.41 km

Kollsjön

Highlight • Lake

Kollsjön is a stock-managed trout fishing lake. It is surrounded by forest, with a trail close to the shore all the way around.

Tip by

B

20.6 km

End point

Parking

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Way Types & Surfaces

Way Types

11.9 km

5.03 km

3.09 km

646 m

Surfaces

11.1 km

6.48 km

1.30 km

1.08 km

634 m

< 100 m

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Elevation

Elevation

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

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Weather

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Monday 18 May

18°C

5°C

-- %

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to access the Four lakes loop from Kolboryd?

While specific parking for a 'Four lakes loop' isn't detailed, the Kolboryds Gård Multi Trail area, which this route is part of, is popular. Look for parking facilities near Kolboryds Gård or within the broader Härskogens naturreservat area in Brännås, Lerum. It's advisable to arrive early, especially on weekends, as the area is well-used.

How can I reach the trailhead using public transport?

The Kolboryd area is accessible via public transport. You would typically aim for connections to Lerum, and then local buses might serve stops closer to Härskogens naturreservat or Kolboryds Gård. Check local transit schedules for the most up-to-date information on routes and timings from Lerum to the Brännås area.

Is the Four lakes loop from Kolboryd dog-friendly?

Yes, dogs are generally allowed on trails in the Kolboryd area and within Härskogens naturreservat. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Always clean up after your pet.

What is the best time of year to jog this route?

The trail can be enjoyed year-round, but spring and autumn offer pleasant temperatures and beautiful scenery. Summer is also popular, though it can be warmer. In winter, be prepared for potentially icy or snowy conditions, which can make jogging more challenging. Always check local weather forecasts before you go.

Are there any permits or entrance fees required for this trail?

No, there are typically no permits or entrance fees required to access the trails in Härskogens naturreservat, including this route. It is a publicly accessible natural area.

What kind of terrain can I expect on this jogging route?

This route, classified as 'difficult' for jogging, covers a distance of over 20 km with approximately 210 meters of elevation gain. While parts of the broader Kolboryd trail network include gravel paths, expect a mix of surfaces. Given the difficulty and length, it likely includes sections of more rugged singletrack, forest trails, and potentially some uphill and downhill sections.

What can I see along the route?

The route offers scenic views of nature, including beautiful Forest trails. You will also pass by Kollsjön, one of the lakes that gives the loop its name. The general area is known for its natural setting and varied landscapes.

Does this trail intersect with other well-known paths?

Yes, this route utilizes sections of several other trails within the Härskogens naturreservat. You will find yourself on parts of Stora Härsjörundan, Vildmarksleden, Stamsjöleden, and Stamsjöspåret, among others, as you complete the loop.

What are the regulations for Härskogens naturreservat?

As part of Härskogens naturreservat, general regulations apply. These typically include keeping dogs on a leash, not disturbing wildlife, refraining from littering, and respecting private property. Camping and making fires may have specific restrictions outside designated areas. Always follow local signage and regulations to preserve the natural environment.

Is this route suitable for beginner joggers?

Given its 'difficult' rating, a distance of over 20 km, and significant elevation changes, this route is generally not recommended for beginner joggers. It requires a good level of fitness and experience with longer distances and varied terrain. Beginners might prefer shorter, easier loops available in the Kolboryd area.

Are there any cafes or amenities nearby for after my run?

The Kolboryd area, being part of Lerum municipality, has amenities available. While there might not be facilities directly at the trailhead, you can find cafes, restaurants, and other services in nearby towns like Lerum. It's a good idea to plan ahead if you're looking for specific post-run refreshments or facilities.

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