Ibuki-yama (伊吹山, 1,377 m) sits on the border of Shiga and Gifu, a limestone massif famous for its summit wildflower meadows and for holding the world record for deepest measured snow depth. As of 2026 the way you can experience it has changed dramatically: the old trail from the foot of the mountain is closed, and the only legal hiking is on the short summit-area loops reached from the Ibukiyama Driveway toll road. This guide reflects that current reality.
Why Fukada Chose Ibuki-yama
Ibuki-yama appears in Kyuya Fukada's Nihon Hyakumeizan. The book is ordered roughly north to south, not by rank or difficulty. Fukada was drawn to the mountain's contrasts: a relatively low summit with an extreme snow climate, and grassland meadows whose limestone substrate supports an unusually rich flora. The mountain has also long served as a weather landmark for travellers moving between the Kinki region and central Japan.
The Mountain
| Attribute | Detail |
|---|---|
| Elevation | 1,377 m (1,377.31 m) |
| Prefectures | Shiga (Maibara) / Gifu (Ibigawa, Sekigahara) |
| Hyakumeizan | Included (book order is roughly north-to-south, not a ranking) |
| Famous for | World-record snow depth (11.82 m); summit wildflower meadows; Lake Biwa views |
| Road access | Ibukiyama Driveway toll road (17 km) to summit parking at 1,260 m |
| Driveway season (2026) | Open mid-April (18 Apr) – 23 Nov |
The summit (1,377 m) is a broad, open plateau with 360-degree views. The deepest measured snow depth ever recorded anywhere on Earth — 11.82 m (1,182 cm) — was logged at the Ibuki-yama summit observatory on 14 February 1927. (This is a snow-depth record, the depth of snow lying on the ground, rather than a single snowfall.)
The Routes
As of 2026 the only open hiking is on the summit-area loop trails, all reached from the Driveway summit parking lot at 1,260 m. The parking lot sits about 117 m below the summit. These trails are usable only while the Driveway is open (mid-April to late November).
Central Trail (Chuo-tozando)
Grade: Easy
- The most direct route from the summit parking lot to the top, about 20 minutes one way.
- Steeper and more direct than the West Trail; the quickest way up.
West Trail (Nishi-tozando)
Grade: Easy
- A gentler, longer climb from the parking lot to the summit, about 40 minutes one way.
- The recommended ascent for taking in the wildflower slopes.
East Trail (Higashi-tozando)
Grade: Easy (descent only)
- A descent-only route from the summit back toward the parking area, about 60 minutes.
- Combine West (up) and East (down) for a full summit-area loop through the meadows.
Getting There
By car (Driveway): The Ibukiyama Driveway is reached from Sekigahara IC on the Meishin Expressway, about 10 minutes to the tollgate. From there the 17 km toll road climbs to the summit parking lot at 1,260 m, which has roughly 530 spaces. Note that Sekigahara IC (for the Driveway) is distinct from the Maibara / Nagahama IC, which served the now-closed base trail.
Summer bus (no car): In July and August a seasonal bus runs from JR Sekigahara station to near the summit, taking roughly 50 minutes.
Base-side access (currently moot): Before the closure, a Kokoku Bus ran from JR Ohmi-Nagaoka station (one stop east of Maibara on the Tokaido Line) to the Ibuki trailhead — about 16 minutes, ¥370. This is noted only for context; the base trail is closed, so this approach is not currently usable.
Flora and Wildlife
Asiatic black bears (ツキノワグマ): Asiatic black bears inhabit this Honshu mountain and are occasionally reported in the forested lower sections. Make noise on quiet stretches and follow standard black-bear precautions.
Limestone wildflower meadows: Ibuki-yama's summit grassland is famous nationally for its flora, with more than twenty plant species carrying the mountain's name — among them Ibuki-toranoo (イブキトラノオ), Ibuki-jakousou (イブキジャコウソウ) and Ibuki-fuuro (イブキフウロ). The combination of a heavy Sea-of-Japan snow climate and limestone substrate produces this unusual botanical richness. Peak bloom is roughly June to August, on the open slopes around the summit.
Lake Biwa views: On clear days the summit looks south over Lake Biwa, Japan's largest lake, and east across the Nobi plain.
Seasonal Guide
Mid-April – May: The Driveway opens (2026: 18 April) and the summit loops become accessible. Early-season grassland greening.
June – August: Peak wildflower season on the summit meadows; the best time for the flora. Warm and busy, especially on summer weekends.
September – November: Cooler air and long-range views; the Driveway typically closes around 23 November, after which the summit loops are no longer accessible.
December – March: The Driveway is closed and the mountain becomes one of the most snow-buried places on Earth. There is no casual winter access.
Practical Tips for Foreign Visitors
Check the closure status first. The single most important thing to confirm before you travel is the trail status — climbing from the base is currently prohibited, and the only open hiking is the summit loops from the Driveway. Maibara City publishes the current situation.
Plan around the Driveway season. The summit loops are only usable while the toll road is open (mid-April to late November in 2026). Outside that window there is no walking access to the summit area.
Entry cooperation fee. Around the summit a voluntary entry cooperation fee (入山協力金) is collected by the local Ibuki conservation council; it funds vegetation protection and the upkeep of trails and toilets. Carrying small change for it is appreciated.
Come for the flowers and the view, not a long climb. With the base route closed, Ibuki-yama is now a short-walk wildflower-and-panorama outing rather than a full ascent. The West-up / East-down loop through the meadows is the most rewarding way to spend time on the summit.
Frequently Asked Questions
Can I still climb Ibuki-yama from the bottom of the mountain?
No. A large landslide on 12 July 2023 destroyed the Ueno / Omote ascent route on the Maibara side, and climbing from the foot of the mountain is currently prohibited regardless of season or route. The only open hiking is the summit-area loop trails reached from the Driveway summit parking lot at 1,260 m.
Is Ibuki-yama a day hike or an overnight?
It is a short day outing. With the base route closed, Ibuki-yama is now a short-walk wildflower-and-panorama trip rather than a full ascent. The summit loops from the parking lot take roughly 20 to 60 minutes one way, so there is no need to stay overnight.
Can I reach Ibuki-yama without a car?
In July and August a seasonal bus runs from JR Sekigahara station to near the summit, taking roughly 50 minutes. Outside those months the summit area is reached by car via the Ibukiyama Driveway, the 17 km toll road from near Sekigahara IC.
When is the best season, and when is the Driveway open?
The summit loops are only usable while the Driveway is open, mid-April (18 April in 2026) to about 23 November. Peak wildflower season is June to August on the summit meadows, the best time for the flora.
Are there bears, and what should I do?
Asiatic black bears inhabit this Honshu mountain and are occasionally reported in the forested lower sections. Make noise on quiet stretches and follow standard black-bear precautions.
This guide is part of the Japan's 100 Famous Mountains: Complete Hyakumeizan Guide series.
