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Mikuni-sammyaku

The best road cycling routes around Mikuni-sammyaku

4.7

(31)

1,701

riders

51

rides

Road cycling around Mikuni-sammyaku offers a diverse and challenging landscape. The region is characterized by steep slopes, deep valleys, and numerous peaks, providing a dramatic backdrop for road cycling routes. This mountainous terrain, primarily straddling the border between Gunma and Niigata prefectures, features varied elevations and demanding climbs. Road cyclists can expect routes that navigate through rugged landscapes and offer extensive mountain vistas.

Best road cycling routes around Mikuni-sammyaku

  • The most popular road cycling route is Lake Haruna – Steep…

Last updated: June 27, 2026

5.0

(1)

173

riders

#1.

Lake Haruna – Steep Slope loop from 群馬県立 榛名高等学校

30.7km

01:57

920m

920m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

5.0

(1)

40

riders

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

5.0

(2)

43

riders

54.0km

03:53

1,670m

1,670m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

32

riders

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Popular around Mikuni-sammyaku

Hiking around Mikuni-sammyaku

Cycling around Mikuni-sammyaku

Mountain Hikes around Mikuni-sammyaku

Running Trails around Mikuni-sammyaku

Tips from the Community

HeHO
November 15, 2025, "Kaiouin(海應院)" Temple

There is an old pine tree with beautiful branches in the temple grounds. It is a must-see!

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HeHO
November 15, 2025, Karamatsu Milepost

Before the Meiji period, there were mileposts every 4km along the road. Mileposts are small mounds on either side of the road, but many have been demolished or only one side remains. However, this milepost remains on both sides.

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We headed to Lake Chuzenji at 8:30am. There was a lot of traffic on Irohazaka, but it was a pleasant ride. Along the way, we got a great view of the sea of clouds.

Translated by Google

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This is the place where the first Japanese translation of Conan Doyle's Sherlock Holmes stories was made, and this statue was erected to commemorate this.

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HeHO
September 28, 2025, Oiwake-Juku

It is the 20th post town from Edo out of the 69 stations on the Nakasendo road. (Wikipedia)

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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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Top tip! The center of Kusatsu is a charming onsen village known for its hot springs and traditional Japanese houses. Right next to the Sulfur Spring, one of Kusatsu's most famous onsen, is the Yubatake, a traditional Japanese sulfur spring that visitors can observe.

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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.

Translated by Google

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Frequently Asked Questions

How many road cycling routes are available in Mikuni-sammyaku?

There are over 50 road cycling routes available in Mikuni-sammyaku on komoot. These routes offer a diverse range of experiences, from moderate rides to very challenging ascents, catering to various skill levels.

What is the best time of year for road cycling in Mikuni-sammyaku?

The Mikuni Mountains experience heavy snowfalls in winter, so the best time for road cycling is typically from late spring to autumn. Summer offers stable riding conditions, while autumn provides stunning vibrant foliage, especially around areas like the Mikuni Pass Skyline in Hokkaido, which is generally open from late April to early November.

What are the typical terrain and difficulty levels for road cycling in Mikuni-sammyaku?

Road cycling in Mikuni-sammyaku is characterized by steep slopes, deep valleys, and diverse peaks. The terrain is rugged and mountainous, offering demanding climbs with significant elevation gains. While there are some moderate routes, the majority of the 55 routes listed on komoot are considered difficult, with 34 routes falling into this category.

Are there any easy road cycling routes for beginners in Mikuni-sammyaku?

While the Mikuni-sammyaku region is known for its challenging terrain, there are a few easier options available. Komoot lists 3 routes as easy and 18 as moderate, providing less strenuous alternatives for beginners or those seeking a more relaxed ride.

What do other cyclists say about road cycling in Mikuni-sammyaku?

The road cycling routes in Mikuni-sammyaku are highly rated by the komoot community, with an average score of 4.8 stars from more than 10 reviews. Cyclists often praise the dramatic mountain backdrops, challenging climbs, and the sense of adventure offered by the region's diverse landscape.

What scenic spots or landmarks can I expect to see while road cycling in Mikuni-sammyaku?

The region offers breathtaking scenery. You might encounter views of Mount Fuji on clear days from the Mikuni Pass near Oyama, Shizuoka. Other notable sights include the Kegon Falls, the peaceful marshlands of Mt. Naeba, and the striking red arch of the Matsumi Ohashi Bridge if you venture towards the Mikuni Pass Skyline in Hokkaido. The area also features numerous onsen and serene lakes like Shakunage Lake.

Are there any notable waterfalls or natural features along the road cycling routes?

Yes, the Mikuni Mountains are home to majestic waterfalls and crystal-clear waters, particularly around Mt. Makihata. The famous Kegon Falls is also a prominent natural attraction in the broader region. Cyclists can also experience diverse ecosystems and vibrant autumn foliage throughout the range.

Can I find long-distance road cycling routes in the Mikuni-sammyaku region?

Yes, the Mikuni-sammyaku region offers several long-distance road cycling routes. For example, the Karamatsu Milepost – Sherlock Holmes Statue loop from 小諸 covers nearly 98 kilometers with significant elevation gain, providing a substantial challenge for experienced riders.

Is public transport accessible for road cyclists in the Mikuni-sammyaku area?

Yes, the region is accessible by public transport. Cyclists can travel to the countryside from Tokyo by train, taking their bikes on board when properly wrapped. The area is also well-connected to towns like Hakone, making it feasible to reach starting points for many routes.

Are there places to stay or cafes along the road cycling routes in Mikuni-sammyaku?

Yes, the region offers various amenities. You'll find numerous onsen (hot springs) like Silver Mine Onsen and Komanoyu Onsen, which are perfect for relaxation after a ride. Some areas, such as the Mikuni Pass Skyline in Hokkaido, feature observatories with restrooms and cafes at the summit, providing refreshment stops for cyclists.

What kind of gradients can I expect on the more challenging road cycling routes?

The challenging routes in Mikuni-sammyaku, particularly those around the Mikuni Pass near Oyama, Shizuoka, are known for their steep gradients. Cyclists can expect an average gradient of 10.5% over 6.75km, with sections reaching double-digit gradients of 14-16%. These routes are designed for experienced riders seeking a demanding ascent.

Are there any circular road cycling routes in Mikuni-sammyaku?

Many of the road cycling routes in Mikuni-sammyaku are designed as loops, allowing you to start and finish at the same point. Examples include the Lake Haruna – Steep Slope loop from 群馬県立 榛名高等学校 and the Yubatake Hot Spring, Kusatsu – Viewing Platform Shelter loop from Kusatsu, offering convenient options for exploring the region.

Are there any specific cultural or historical sites I can visit while cycling?

While cycling, you might pass by or be near significant cultural sites. For instance, the Karamon Gate, Nikko Toshogu is a notable historical site in the broader area. Additionally, Mt. Hakkai is a significant religious and historical site within the Mikuni Mountains, though its trails are more suited for hiking.

Most popular routes around Mikuni-sammyaku

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