Stora Alsjön is a region in Sweden characterized by its extensive coniferous forests, ancient pines, and numerous oligotrophic lakes, including Stora Alsjön itself. The landscape features varied terrain with rocky outcrops and the prominent Alsjöklint, offering expansive views over the forested wilderness. This natural setting provides a foundation for several outdoor activities, including hiking, road cycling, jogging, touring cycling, gravel biking, and mountain biking. The region's status as a nature reserve ensures the preservation of its diverse ecosystems.
53
Routes
4.6
(37)
Average rating
385
People visited

4.0
(2)
8
hikers
6.44km
01:42
70m
40m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4
hikers
4.31km
01:07
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

5.0
(2)
20
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4.7
(3)
11
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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40
riders
54.7km
02:16
360m
360m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

16
riders
28.9km
01:17
250m
240m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

17
riders
72.1km
03:06
530m
530m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

13
riders
48.7km
02:04
350m
350m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
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5.0
(1)
8
runners
13.0km
01:23
110m
110m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4
runners
13.3km
01:29
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

2
runners
10.1km
01:04
60m
60m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3
runners
6.46km
00:42
50m
50m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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5.0
(2)
5
riders
55.2km
03:29
370m
370m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
5
riders
44.3km
03:05
310m
310m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4
riders
26.5km
01:35
160m
160m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4
riders
30.4km
02:12
230m
230m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4
riders
81.5km
05:37
670m
670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

7
riders
72.5km
04:33
510m
510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
5
riders
53.3km
03:13
400m
400m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3
riders
43.6km
02:50
290m
290m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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3
riders
35.7km
02:35
230m
230m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.0
(1)
2
riders
24.4km
01:43
180m
180m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

2
riders
42.7km
03:09
310m
310m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

2
riders
16.4km
01:02
130m
130m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
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Stora Alsjön is a nature reserve characterized by extensive coniferous forests, ancient pines, and several oligotrophic lakes like Stora Alsjön and Lilla Horssjön. It features varied terrain, including rocky outcrops and the prominent Alsjöklint, offering views over the forested landscape. The area is recognized for its rich biodiversity and old-growth forests.
Stora Alsjön offers a range of outdoor activities including hiking, road cycling, jogging, touring cycling, gravel biking, and mountain biking. The region's diverse landscape supports both challenging trails and more accessible routes. Over 1,000 visitors have shared experiences, resulting in an average rating of 4.41 out of 5 stars on komoot.
Yes, hiking is a primary activity in Stora Alsjön, with trails traversing forests, bogs, and rocky areas. The well-known Sörmlandsleden trail (Stage 12) passes through the reserve, offering a moderately difficult, approximately 6-mile (10 km) circular loop. A local blue-marked trail can be combined with the Sörmlandsleden for an approximately 5-mile (8 km) round trip. For more information, see the Hiking in Stora Alsjön guide.
Yes, the Stora Alsjön region and surrounding Södermanland area offer options for road cycling, touring cycling, and gravel biking. Extensive gravel road networks wind through forests and past tranquil lakes, suitable for various cycling styles. Specific guides include Road Cycling Routes in Stora Alsjön and Gravel biking in Stora Alsjön.
The Stora Alsjön region offers mountain biking opportunities, with trails that utilize the varied terrain of forests and rocky areas. These routes provide an engaging experience for mountain bikers. For specific options, consult the MTB Trails in Stora Alsjön guide.
Yes, Stora Alsjön offers family-friendly hiking routes. These trails are designed to be accessible and enjoyable for a wider range of ages and skill levels. Details can be found in the Family-friendly hikes in Stora Alsjön guide.
A prominent natural feature is Alsjöklint, a high mountain within the reserve that provides extensive views over the forested landscape. The area also includes several oligotrophic lakes, such as Stora Alsjön and Lilla Horssjön, and numerous picturesque rocky outcrops. These locations often serve as scenic resting spots.
Yes, Stora Alsjön provides easy hiking routes suitable for beginners or those seeking less strenuous walks. These trails offer a gentle introduction to the region's natural beauty. Information on these routes is available in the Easy hikes in Stora Alsjön guide.
The terrain in Stora Alsjön is varied, ranging from dense coniferous forests and damp valleys to bogs and rocky areas. Trails can include hilly sections with stairs and traverse ancient pines. This diversity provides an engaging experience for hikers and cyclists.
Official information about the Stora Alsjön Nature Reserve is managed by Länsstyrelsen (County Administrative Board) in Stockholm and Södertälje Kommun. Detailed information can be found on the Södertälje Kommun website. The environment office can be contacted at +46852301000.
Komoot offers several guides for Stora Alsjön, covering various activities and interests. These include guides for Hiking, Road Cycling, Gravel Biking, Family-friendly hikes, and Easy hikes, among others.
Yes, the Stora Alsjön Nature Reserve provides amenities to enhance the outdoor experience. Visitors can find benches with fine views, wind shelters, and designated fire pits. These facilities are available for relaxation, picnics, and potential overnight stays.

