4.3
(3)
96
riders
13
rides
Mountain biking in Østmarka Naturreservat offers a diverse landscape characterized by dense woodlands, rolling hills, and numerous lakes. The natural reserve provides a varied terrain suitable for different mountain biking experiences, from challenging climbs to more flowing paths. The region's topography includes a mix of forest trails and open areas, with elevations generally under 200 meters, making for accessible yet engaging rides.
Last updated: May 25, 2026
7
riders
13.1km
01:14
210m
210m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(1)
3
riders
11.7km
00:59
160m
160m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

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13
riders
19.4km
01:37
300m
300m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4
riders
9.10km
00:52
120m
120m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
3
riders
27.9km
01:54
280m
280m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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From the observation tower you have a 360-degree panoramic view, with forests and rolling hills in all directions. On the horizon you will find landmarks such as the towers at Røverkollen and Tryvannshøgda in Oslo and Viktjernåsen in Trøgstad, the radar dome at Haukåsen, the characteristic Kolsåstoppene and not least the twinkling Mosjøen which is right nearby.
0
0
After the climb, you can take a breather on the stone and plateau-like open space and enjoy the great view.
3
0
Nice and easily accessible hiking destination not far from the parking lot. Good views in all directions.
0
0
Østmarka Naturreservat offers a selection of 13 mountain bike trails, catering to various skill levels. You'll find 2 easy routes, 7 moderate routes, and 4 difficult trails to explore.
Yes, Østmarka Naturreservat has easy mountain bike trails perfect for beginners. One such option is the Elgelia – Veslesjølen loop from Nerdrum, which is 27.8 km long and offers a gentle introduction to the area's terrain.
For experienced riders, Østmarka Naturreservat features 4 difficult mountain bike trails. Consider the Langfuruåsen – Gørrtjernsrabben loop from Østmarka, a 13.1 km route with varied forest paths and technical sections, or the longer Gørrtjernsrabben – Bakeråsen loop from Greverudåsen, which spans 19.4 km through forested hills.
Many of the mountain bike trails in Østmarka Naturreservat are designed as loops, allowing you to start and end at the same point. Examples include the Østre Grasås – St. Hansåsen loop from Flateby and the Tangenfjellet loop from Sværsvann.
The best time for mountain biking in Østmarka Naturreservat is typically from late spring through early autumn (May to October). During these months, the trails are generally dry and free of snow, offering optimal riding conditions and pleasant temperatures. Always check local weather conditions before heading out.
During winter, Østmarka Naturreservat is often covered in snow and ice, making traditional mountain biking challenging or impossible. Many trails may be used for cross-country skiing. If you plan to ride in winter, consider fat biking on groomed trails or be prepared for very challenging, potentially icy, and snowy conditions on ungroomed paths.
The mountain bike trails in Østmarka Naturreservat are highly rated by the komoot community, with an average score of 4.3 stars. Riders frequently praise the diverse forest paths, the scenic beauty of the woodlands, and the varied terrain that offers both challenging climbs and flowing sections.
While Østmarka Naturreservat is primarily a natural area, there are often small kiosks or cafes located at popular entry points or within nearby communities. It's advisable to check local listings for specific opening hours and locations before your ride, especially outside of peak season.
The duration of mountain bike trails in Østmarka Naturreservat varies significantly based on distance and difficulty. For example, a moderate route like the Østre Grasås – St. Hansåsen loop from Flateby (11.7 km) takes about 1 hour, while a longer, easy trail such as the Elgelia – Veslesjølen loop from Nerdrum (27.8 km) might take closer to 1 hour 53 minutes.
You can expect a diverse terrain in Østmarka Naturreservat, characterized by dense woodlands, rolling hills, and numerous lakes. The trails feature a mix of forest paths, some technical sections, and open areas, with elevations generally under 200 meters, providing engaging rides for various skill levels.
To find less crowded trails, consider exploring routes that are longer or rated as difficult, as these tend to attract fewer riders. Early mornings or weekdays are also good times to experience the trails with more solitude. The reserve's extensive network means you can often find quieter paths away from the most popular access points.


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