Posted on Feb 9, 2023
0
SSESW
Posted on Feb 9, 2023
0 0
SSESW
4.6km

Distance

4 hours

Time

650m

Ascent

1107m

Highest point

6.5/10
Difficulty
Snow Icon | Hokkaido Wilds
Jan-Mar

Best season

GPX

KML

TOPO

GSI

The south face of Shiribetsu-dake 尻別岳 (1107m) is an unavoidably prominent face near the international ski resort of Rusutsu near Niseko, Japan. The bowls and gullies directly south of the summit on this diminutive peak are steep and for most of the season, very deep. Conveniently, the route starts from the sprawling Rusutsu Resort parking area, facilitating good access to a post-ski onsen, restaurants and shopping too. The normal Shiribetsu-dake caveats apply - it's a free-standing peak with steep slopes particularly prone to avalanche, dangerous glide cracks, and other snowpack instabilities. Utmost care is required.

We visited this route on Mar 08, 2022

Skiers: Timbah, Tim, Tom, Ben

Topomap

Route Map

Need to know details

Location

Shiribetsu-dake’s southwestern flanks are home to part of the sprawling Rusutsu Ski Resort in southern Hokkaido, about 20km southeast of Niseko. This route ascends the large bowl directly south of the Shiribetsu-dake summit, northeast of the ski resort.

General notes

Shiribetsu-dake is a magnet for backcountry skiers, with excellent accessibility, short and sharp access to steep skiing slopes, and all the epic powder the area is known for. This route up the southern aspect is particularly nice, as it starts from the sprawling Rusutsu Resort carpark – none of the roadside parking headaches of other routes on the mountain. Given the right conditions, the massive southern bowl offers incredible acreage of skiing potential.

The normal Shiribetsu-dake caveats apply though: Its steep slopes are notorious for avalanche activity and for its colossal and deep glide cracks (see safety notes below). Related to this point is managing exposure to snowpack hazards on the ascent and descent. While exposure on the ascent can be managed by zigzagging up the main bowl’s looker’s right ridge, the descent will invariably lead the skier into highly hazardous zones. Good knowledge of the snowpack, as well as good observation skills and experience, is important for this route.

Hut
None
Route details

Park up at the Rusutsu Resort car park – its not only perfect for skiing this southern face, but also great for a post-ski soak in the Rustusu Onsen (see onsen notes below). Head northwest along the road, and clamber up the snowbanks to start the skin northwest towards the base of the large southern bowl. In typical volcano style, the approach is very mellow, getting exponentially steeper as you climb. Arguably, you’ll limit exposure to snowpack instability as you climb by gaining the ridge to the looker’s right of the main bowl as soon as possible, zigzagging through the dense trees along the ridge. The ridge itself is also quite steep, so you’ll have to have your kickturn game dialed, particularly if the snow is very deep or if it’s bulletproof snow crust.

The summit itself is nicely flat- flat enough for the Hokkaido Backcountry Club heliski operation to land their chopper up there. You’ll see snow stakes marking out the landing area, so keep well clear. Views are excellent – Rusutsu Resort to the south, Yotei-zan to the northwest.

Given stable conditions, the descent on this route offers a huge area of steep and deep skiing. Ski either the main southern bowl, or one of the two tighter gullies east of the main bowl from top to bottom in one go. It is worth repeating however that Shiribetsu-dake, particularly this southern face, is notorious for glide-cracks, full-depth avalanches, and most other sorts of instability. The bowls and gullies are not safe, and should be treated as such with extreme caution. Once at the base of the bowl, head back along your skin track to the carpark.

Route Timing
Up | 3hrs
Down | 0.5hrs

Transport

Public transport:

Rusutsu Resort is extremely accessible by public transport – the resort runs a number of shuttles from Sapporo City, Chitose City and the Niseko area. See options on the Rusutsu Resort website here.

By car:

The Rusutsu Resort carpark is colossal, and rarely full.

Physical maps
Print: HokkaidoWilds.org 1:25,000 TOPOMAP+
Niseko Backcountry map: Buy on Amazon.co.jp | See companion site for more purchase options
Official Topo Map: Kimobetsu (喜茂別) – map no. NK-54-20-4-1

NOTE: The official 1/25000 topo map(s) above can be purchased for 350yen from Kinokuniya bookstore next to Sapporo Station or online (in Japanese).

Aspect
The main aspect skiers are exposed to on the descent and/or ascent is South. Other aspects that may also be encountered while following the route outlined on this page include: Southeast, Southwest. Therefore, keep an eye on the weather forecast a few days ahead of your trip to monitor wind, snow, and temperature. Also, since this route is in the general vicinity of the Shiribeshi area, consider looking at the Japan Avalanche Network avalanche bulletins (updated Tuesdays, Thursdays, Saturdays at 8am) or the daily Niseko Avalanche Information website. These may give extra insight into avalanche conditions in the greater area around the route.

Snow and
route safety

It’s not often we repeat ourselves so much in one route overview, but Shiribetsu-dake, particularly this southern aspect, is a hotbed of instability. It’s steep, gets a lot of snow, and also gets a huge amount of sun as the season progresses. Shiribetsu-dake and the good skiing slopes it offers are easily the most hazardous in the greater Niseko area. Hold plans lightly, keep a close eye on weather and avalanche bulletins, and keep ultra conservative.

Shiribetsu-dake South Face Difficulty Rating

Category

Grade

Points

Strenuousness

Vertical Gain

B

35

Time ascending

C

3

Technicality

Altitude

B

6

Hazards

A

20

Navigation

D

0

Totals

64/100

GRADES range from A (very difficult) to D (easy).  More details here. Rating rubric adapted from Hokkaido Yukiyama Guidebook 北海道雪山ガイド.

Weather forecast

Windy.com weather forecast for Shiribetsu-dake
Onsen nearby

One of the best things about this route is its proximity to the Rusutsu Resort onsen, particularly their excellent new Kotobuki-no-yu ことぶきの湯 (location, 1300yen). On the 6th floor of the North Wing of Rusutsu Resort Hotel, the unique outdoor baths overlook the entire southern part of Rusutsu Resort. At 1300yen per person, pricing is on par with other large hotel onsen, but the views are worth visiting at least once.

Extra Resources
No extra English resources that we know of. If you know of any, please let us know in the comments.

Guide Options

If you’d like to ski this route and/or explore other Niseko areas together with a local certified guide, get in touch with Yasuko Kikuchi. Born and raised in Hokkaido, she’s a JMGA-certified guide now based in Sapporo. Her outdoor experience is broad and worldwide, having worked as a Canadian Ski Patrol member, and has sumitted a number of 6,000m+ peaks around the world. She speaks good English. In addition to Yasuko, also see a full list of English-speaking Hokkaido Mountain Guides Association (HMGA) guides on the HMGA website here

Hokkaido Backcountry Club also runs a heliski operation on Shiribetsu-dake – we’ve heard great things!

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Show Full Route Notes Close Route Notes

Route Trip Notes

We knew the surface conditions were going to be very average. We were in a solid freeze-soften-refreeze cycle, and surface conditions around the Niseko area were generally bulletproof hardpack. But we’d never done this south face of Shiribetsu-dake before, and had nothing better to do, so we decided to go for a walk to check it out.

We all arrived at the Rusutsu Resort parking area, and were soon keen to get going and warm up on the skin track.

Predictably, the snow was bulletproof crust. It was still early in the day though, and we were hopeful this southern aspect would warm up just enough to soften up the surface a bit for the descent. Not too much warming though…on the southwestern side of the main southern bowl were colossal glide cracks and the remains of a massive full-depth avalanche.

We hugged the base of the thicket of trees on the looker’s right of the main bowl for a while before zigzagging our way to the relative safety of the ridge, through the dense stand of trees.

The going was relatively slow, and we had ski crampons on less than half way up the ridge. The surface varied between breakable and non-breakable crust. Ben dropped his glasses and had to ski down after them as they slid unencumbered down the slope. It felt marginally yard-sale-ish.

 

As the trees cleared a little along the heavily corniced ridgeline, we had amazing views south towards the main Rusutsu Resort area.

Keeping on keeping on, we finally found the ridgeline leveling out, and we made it to the flat summit of Shiribetsu-dake. A bitterly cold wind was blowing, so we quickly ripped skins and started our descent.

While the surface had not warmed up much at all, mercifully it was not breakable crust. Just nice-enough bulletproof hardpack that I was happy to have my skinny spring skis for. We skied the main southern bowl generally to the skier’s left of the bowl, avoiding the mess of glide cracks and avalanche debris of the skier’s right.

Just as we arrived back to the car park, the skies finally cleared and we were bathed in warmth. We headed to the Rusutsu Resort area with the intention to have an onsen, but were told it wasn’t open to day visitors until 2pm. It was 1pm, so we decided to skip it and just head down the road for lunch – at Ben’s recommendation we ended up at a pancake place with amazing fried chicken (go figure).

Comments | Queries | Reports

Done this route to Shiribetsu-dake, or others nearby? Thinking of doing it? Please post any feedback, reports, or queries here. Thanks!

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Shiribetsu-dake South Face Difficulty Rating

Category

Grade

Points

Strenuousness

Vertical Gain

B

35

Time ascending

C

3

Technicality

Altitude

B

6

Hazards

A

20

Navigation

D

0

Totals

64/100

GRADES range from A (very difficult) to D (easy). Hazards include exposure to avalanche and fall risk. More details here. Rating rubric adapted from Hokkaido Yukiyama Guidebook 北海道雪山ガイド.