4.6
(1319)
7,494
hikers
357
hikes
Hiking around Stor-Leirsjøen offers access to the varied landscapes of Trondheim Bymarka, a large natural area known for its forests, lakes, and waterways. The region features Stor-Leirsjøen itself, a significant lake that was once a drinking water source and is now part of the Leirelvvassdraget system. Accessible from points like Granåsen, the terrain includes forested paths, lakeside trails, and connections to other smaller lakes. This area provides a network of trails suitable for exploring the natural environment of Sør-Trøndelag.
Last updated: May 14, 2026
4.8
(22)
63
hikers
9.74km
02:38
130m
130m
Hike the moderate 6.0-mile (9.7 km) Skellbreia loop in Bymarka Nature Reserve, offering lake views and a cozy cabin stop.
4.8
(5)
39
hikers
7.03km
01:58
140m
140m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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4.5
(2)
14
hikers
6.87km
01:53
110m
110m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
6
hikers
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
10
hikers
11.7km
03:17
240m
240m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Ski WC 2025 - Winter and summer ski jump - Hill 140 m
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Gorgeous serene lake, definitely worth a rest break.
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Sølvskakkeltjønna is a beautiful lake to the south of the larger Stor-Leirsjøen. From here, it's not far to Rønningen, a farm that's been serving food since 1976.
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With a history dating back to the 16th century, Rønningen is a charming place to take a break. The establishment has been serving food and drink since 1976 and is open to hikers in summer and cross country skiers in winter.
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Skjellbreia is a lake in the Bymarka region to the west of Trondheim. The lake makes for a lovely hike in summer and you can enjoy the facilities at the Grønlia hut to its north.
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The trail to Grønlia features lovely views down onto Skjellbreia lake. This is a beautiful part of Bymarka's woodland grandeur.
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There are over 360 hiking trails in the Stor-Leirsjøen area, catering to various skill levels. This includes more than 170 easy routes, 170 moderate trails, and a selection of challenging hikes for experienced adventurers.
The terrain around Stor-Leirsjøen is diverse, characteristic of the Trondheim Bymarka. You'll find extensive forested paths, serene lakeside trails, and connections to other smaller lakes. The landscape is known for its peaceful scenes and varied nature.
Yes, Stor-Leirsjøen offers many family-friendly options. With over 170 easy routes, you can find paths suitable for all ages. An example is the Granåsen Ski Jump – Rønningen loop from Saupstad, which is an easy 4.4-mile (7.2 km) path through local woodlands.
Yes, the trails in Trondheim Bymarka, including those around Stor-Leirsjøen, are generally dog-friendly. It's always recommended to keep dogs on a leash, especially in nature reserve areas or during wildlife breeding seasons, and to clean up after them.
Yes, a convenient starting point for trips to Stor-Leirsjøen is the large parking lot at Granåsen. It's only about 1 km from the dam at the eastern end of the lake, making the area easily accessible for day-trippers.
Stor-Leirsjøen itself is a significant feature, once a drinking water source and now part of the Leirelvvassdraget waterway system. You might also spot beavers around the lake. The area connects to Litl-Leirsjøen, and the surrounding Bymarka offers varied natural beauty. The Granåsen ski center is also a prominent landmark nearby.
Yes, there are several circular routes. For instance, the Skellbreia loop - Bymarka Nature Reserve is a moderate 6.0-mile (9.7 km) trail that explores varied terrain. Another option is the Skillbreia Lake and Wetlands loop from Nilsbyen, an easy 4.3-mile (6.9 km) path.
The trails in Stor-Leirsjøen are highly rated by the komoot community, with an average score of 4.6 stars from over 1300 reviews. Hikers often praise the serene lake environments, extensive Bymarka forests, and the well-maintained network of paths suitable for different ability levels.
Yes, the connection between Stor-Leirsjøen and Litl-Leirsjøen allows for activities like paddling. However, water levels can vary, and sometimes portaging between the lakes might be necessary.
For those seeking a greater challenge, the area offers more difficult routes. An example is the Panoramic views from Gråkallen – Grønlia Cabin loop from Nilsbyen, a difficult 11.1-mile (17.8 km) hike with significant elevation changes.
The landscapes in Trondheim Bymarka, including Stor-Leirsjøen, are celebrated for their peaceful scenes and dramatic seasonal colors. While accessible year-round, spring and autumn offer particularly beautiful scenery with vibrant foliage or fresh greenery. Winter also provides opportunities for snowshoeing or cross-country skiing on designated trails.
Many trails in the Bymarka region provide excellent viewpoints. For panoramic vistas, consider routes that ascend to higher elevations, such as the Panoramic views from Gråkallen – Grønlia Cabin loop from Nilsbyen, which offers expansive views from Gråkallen.


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