3.4
(10)
446
riders
23
rides
Touring cycling routes around Mikuni-sammyaku traverse a mountain range characterized by numerous passes and diverse terrain. The region features volcanic landscapes, particularly in the Shiga Kogen area, alongside lush forests and valleys. Cyclists encounter wild streams and panoramic views of the surrounding mountains, with routes often following well-maintained roads.
Last updated: May 15, 2026
50
riders
29.2km
02:21
890m
890m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
34
riders
37.2km
03:00
1,140m
1,140m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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30
riders
66.0km
05:16
1,910m
1,910m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
19
riders
73.8km
05:39
1,660m
1,660m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
19
riders
68.3km
04:58
1,270m
1,270m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1.0
(1)
18
riders
55.5km
03:26
430m
440m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
13
riders
97.4km
07:42
2,580m
2,580m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
riders
98.1km
07:18
2,260m
2,260m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
riders
44.9km
03:50
1,520m
1,520m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
10.0km
00:42
190m
190m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Amazing snow walls can be seen in the end of April and the beginning of May. One of the best hill climb routes in Nagano.
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Shibu Pass is a well-known mountain pass in Japan, located at an elevation of 2,172 meters and representing the highest point of any national highway in Japan. National Highway 292, which runs through the Shiga Kogen region, offers cyclists a challenge and breathtaking views. The climb from Kusatsu to Shibu Pass is approximately 20 km long and offers an average gradient of 5-6%. The maximum gradient is 11%, making the ride even more challenging. The road is paved and provides a good surface for cycling. The gradients are challenging, but the views are breathtaking. The ride to Shibu Pass offers breathtaking mountain scenery and a variety of natural attractions. The Shiga Kogen region is known for its volcanic activity and offers a unique landscape. Shibu Pass is a highlight for cyclists and a must-see for anyone looking for a challenge. The views from Shibu Pass are breathtaking and offer views of the surrounding mountains and valleys.
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Eight buildings of the shrine and two swords owned by the shrine are national treasures of Japan
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This is the top of the Shiga Kogen. It's the highest national (public) road of Japan, at an elevation of 2.172m.
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This is almost the top of Shiga Kogen. It's also the entrance to the Yokoteyama, having a ridiculous sky-escalator to the top.
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This is the entrance to the Shiga Kogen / national park. Again, I suggest to approach from the west side. Think spot is already over 1000m altitude, still going up to ~2200m at the peak, so be sure prepared for some serious climbing.
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The Mikuni-sammyaku region offers beautiful cycling experiences throughout the warmer months. You can enjoy deep green forests in summer and spectacular autumn leaves in the fall, particularly around areas like Mikuni Pass. The mountain passes are generally accessible during these seasons, providing stunning views and varied terrain.
Mikuni-sammyaku is characterized by diverse terrain, including numerous mountain passes that offer both challenging climbs and breathtaking views. You'll encounter unique volcanic landscapes, especially in the Shiga Kogen region, alongside lush forests, valleys, and wild streams. Many routes feature well-maintained mountain and forest roads, some with significant elevation gains.
While many routes in Mikuni-sammyaku are challenging, there are options suitable for beginners. For instance, guided tours like the Mikuni Pass Downhill Cycling in Kamishihoro Town offer a gentler experience, allowing you to enjoy the scenery with less strenuous effort. Overall, there is at least one easy touring cycling route available in the region.
Mikuni-sammyaku is known for its challenging mountain passes. Routes like the 山田峠 – 渋峠 loop from 長野原草津口, covering 66.0 km with over 1900 meters of elevation gain, are considered difficult. The ascent from Kusatsu to Shibu Pass, featuring gradients of 5-6% and a maximum of 11%, is another notable challenge for experienced riders.
The Mikuni-sammyaku area is rich in natural beauty. You can incorporate visits to stunning waterfalls like Kegon Falls, Yudaki Falls, and Ryuzu Falls into your cycling itineraries. The region also features beautiful lakes such as Lake Haruna and the unique Senjogahara Marshland.
Yes, cyclists might encounter several unique landmarks. The Highest Point of Japan National Road at Shibu Pass is a significant highlight. You could also visit the Jigokudani Monkey Park, known for its snow monkeys, or the Tateiwa Rock. The historical Taushubetsu Bridge, an old railway structure that periodically submerges in Lake Nukabira, is another interesting sight.
The area is highly rated by the komoot community, with an average score of 3.0 stars. Cyclists often praise the challenging mountain passes, the unique volcanic terrain of Shiga Kogen, and the deep green forests that provide a scenic backdrop for rides. The variety of routes, catering to different skill levels, is also a frequently appreciated aspect.
Yes, many touring cycling routes in Mikuni-sammyaku are designed as loops, allowing you to start and end at the same point. Examples include the 天神峠 loop from 群馬県立 榛名高等学校 and the 山田峠 – 渋峠 loop from Kusatsu, which offer comprehensive tours of specific areas.
Absolutely. The presence of onsen (hot springs) in the region offers excellent opportunities for relaxation and recovery. For example, Jippuku no Yu near Shin Jizo Pass is a known spot where cyclists can unwind after a day of riding through the mountains.
One of the longer touring cycling routes in the region is the View of Mount Asama – Asama Volcano Observatory loop from 中軽井沢. This challenging route spans 98.1 km and involves over 2200 meters of elevation gain, typically taking around 7 hours and 18 minutes to complete.
Many routes in Mikuni-sammyaku feature significant mountain passes. The 山田峠 – 渋峠 loop from Kusatsu, for instance, takes you through Yamada Pass and Shibu Pass, which is the highest point of any national highway in Japan. These passes offer both challenging climbs and panoramic views.


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