Posted on Mar 26, 2024
0
NES
Posted on Mar 26, 2024
0 0
NES
14km

Distance

6 hours

Time

950m

Ascent

1060m

Highest point

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

Best season

TOPO
Etai-dake 恵岱岳 (1060m) is a prominent tabletop mountain sitting at the far northeast edge of the impressive Mashike mountain range 増毛山地. Its broad northeast-facing slopes below the flat summit stand out against the sky when viewed from the Etai Pass road. The approach to the main skiing face is along an undulating forestry road, but once you're at the northeast face, it's perfect for lapping. Views west towards Shokanbetsu-dake 暑寒別岳 (1492m), and north to the Japan Sea are stellar on a clear day.

We visited this route on Mar 16, 2024

Topomap

Route Map

Need to know details

Location

Etai-dake is at the northeast corner of the Mashike Range on the Japan Sea coast of Hokkaido, about 2hrs drive north of Sapporo City. This ski tour starts at a small ploughed parking bay about 3km west of Etaibetsu Dam, on Route 94 heading west towards Mashike Town. Route 94 is open during the winter, but closes sporadically during heavy snow events.

General notes

The summit of Etai-dake is perhaps the only accessible vantage point to gaze upon the broad northeast faces of Shokanbetsu-dake. The skin along the access road to the base of Etai-dake is about 3km long, and is undulating (you’ll need skins on for the approach and the exit), but as far as bang-for-your-buck in the Mashike Range, Etai-dake is arguably the best. This is particularly so in the deep winter months, where forays into the Mashike Range are usually nearly impossible due to storms and the sheer distance of approaches.

This ski tour is not all about the views though. That undulating forestry road approach allows access to some sublime lapping terrain. The final 200m vertical climb to the summit in particular is satisfyingly steep. The face is broad enough that it won’t track out quickly. The snow can be as good as it gets on this northern Japan Sea coast.

  • Best season: Note that it’s not until around mid-February that the snow bridges across Etaibetsu-gawa River will be fully developed.
Hut
None
Route details

From the ploughed parking bay, head about 500m west-southwest across the snowfield to join the forestry road. Walk about 2km along the forestry road, and drop down to your left (south) towards Etaibetsu-gawa River just after the first stream marked on the map (about 100m west of the 394m elevation point). The main issue here is crossing Etaibetsu-gawa River. Too early in the season, the snow bridges will not be formed properly, and you’ll need to wade across. From about mid-February onwards, you should be able to find suitable snow bridges to use to cross.

Once across the river, you’ll have a short steep section of slope to zig-zag up. Keep heading towards the looker’s right of the cliff band and you’ll eventually emerge onto a beautiful mellow slope, surrounded by gorgeous old-growth forest. From here it’s about a 1 hour wander along the looker’s left of a shallow gully. You’ll very soon see the steep final pitch to the summit, so just follow your nose south and then south-southwest uphill.

The final 150m ascent up the steep northeast slope under the summit looks sketchy in terms of wind-loading, and for the most part, it is. It might also appear that the summit is blockages by large cornices. There is, however, a shallow ridge-like feature with sparse trees at around gird-reference 522409. Once you’re at the base of the climb, you’ll see it. This generally allows for a less exposed ascent to the summit plateau, with a break in the cornice. Once you’re on the summit plateau, we recommend walking a few hundred meters northwest to get views of the Japan Sea.

For the descent, just follow your up-track. If you’re confident of the snowpack stability, you can lap the 200m or so of northeast slope to your heart’s content. Note that once you’re back on the forestry road, you’ll need to don skins again – the road undulates up and down somewhat.

Route Timing
Up | 4hrs
Down | 2hrs

For a simple up-and-back trip for fit skiers, this trip is likely to take around four to five hours. Add in a couple more hours if you’re planning to lap the upper slopes.

Transport

Public transport:

This route is not accessible by public transport.

By car:

Route 94 from Hokuryu Town (in the east) or Mashike Town (in the west) affords easy access to the trailhead. Note that while Route 94 is open during the winter, it closes sporadically during heavy snow events. Check the Hokkaido road closure website for current status (if there are no markings on Route 94, you’re good to go). There is room to park about 5-6 cars in a ploughed parking bay here. If your party is arriving in more than one vehicle, we recommend parking two cars deep (parking one vehicle in) to maximize space for other parties to park.

Physical maps
Official Topo Map: Etaidake (恵岱岳) – map no. NK-54-13-6-2

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 Northeast. Other aspects that may also be encountered while following the route outlined on this page include: South. Therefore, keep an eye on the weather forecast a few days ahead of your trip to monitor wind, snow, and temperature. Unfortunately there are no avalanche information services for recreational backcountry users in this immediate area (but see the JAN reports and Furano Avalanche Center for sporadic observations eslewhere in Hokkaido).

Snow and
route safety

The final northeast slope below the Etai-dake summit is generally in the lee of storms. This means that while the snow can be very good, the slope is capped by large cornices, and the slope can generally be more wind-loaded than others in the area. This all adds up to a particularly avalanche-prone slope. We recommend performing a pit-check to get a feeling for the stability of the slope. Even then, there are shallow gully-like features on the slope that will lead to isolated pockets of instability in the right conditions.

Etai-dake Difficulty Rating

Category

Grade

Points

Strenuousness

Vertical Gain

A

40

Time ascending

B

6

Technicality

Altitude

B

6

Hazards

C

6

Navigation

C

6

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 Etai-dake
Onsen nearby

The Sunflower Park Hokuryu Hot Spring サンフラワーパーク 北竜温泉 (location, 500yen) in Hokyuryu Town, with its enigmatic double-dragon gate, is worth a post-ski soak. It’s only about 20 minutes drive from the trailhead back towards Takikawa (east). They have an outdoor bath, mist/dry saunas, a large relaxation area, and an attached restaurant. They also have accommodation.

Extra Resources

See Yamanomakochan’s write-up of Etai-dake here.

Guide Options

If you’d like to ski this route and/or explore areas north of Sapporo together with a local certified guide, get in touch with either Wataru Nara or Yasuko Kikuchi. They’re both born-and-bred Sapporo-based JMGA-certified guides. They both cut their teeth on peaks including those in northern Hokkaido and have taken part in major international expeditions. In addition, see a full list of English-speaking Hokkaido Mountain Guides Association (HMGA) guides on the HMGA website here

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Yamano-Makochan's Video Report
Show Full Route Notes Close Route Notes

Route Trip Notes

About a month ago, we were all geared up and excited with our plans to ski Etai-dake on one particular weekend in February. When that weekend came around, however, it was following a huge storm which closed Route 94. So we had to scrap those plans.

It was now mid-March, and we were back for revenge.

This time around it was just me and Timbah. The weather was marginal, calling for cloud and wind from around 10am till noon, and then clear skies.

We headed north from Sapporo early though, leaving my place at around 4am.

We arrived at the base of the mountain just as the rising sun was painting Etai-dake’s broad northeast face a beautiful pastel pink.

We had skins on and were skinning away from the car at around 7am. With such gorgeous weather, I was surprised not to see more vehicles at the trailhead.

The one question mark for us on this trip was the crossing of the Etaibetsu-gawa River. Everything I’d read about the peak made it sound like we’d have no trouble finding a snow bridge, but the access down to the river was relatively steep. Adding in the cold-morning bullet-proof spring snow surface, and it became relatively technical too.

We made it down without incident though, and the snow bridges were solid.

Once across the river, we were now on the approach proper to the summit.

The mellow approach to the summit saw us skinning through gorgeous old-growth forest. Beautiful large specimens of dakekanba white birch and black pine dotted the perfect snow fields that stretched out in front of us.

We stopped at the base of one particularly old-looking dakekanba white birch for a snack. With no summer trail to the peak, winter is the only time this tree would come in contact with humans during the year.

We were now at the base of the final steep climb up to the summit plateau.

The snow on this northeast face was thin windslab on top of a much harder surface underneath. We kept as much as possible to the shallow ridge up to a cornice-free edge of the summit plateau. Snow conditions were less than ideal, and I made a mental note to visit again in February next season.

The blue sky came and went. Wintery snow squalls pelted us with wind and snow, before disappearing again.

Once on the summit plateau, we braced ourselves against the westerly wind and walked to a point on the plateau where we had views of the Japan Sea and the heaving bulk of Shokanbetsu-dake to the west.

The sun shone against the last heavy squall, just as another squall threatened to envelop us again from the north.

The descent was a mix of hard-to-ski breakable wind-pack and hard-to-ski breakable crust.

Some would say perfect character- and skill-building conditions.

Once again I promised myself that we’d come back in February.

On the return across the river, we followed the skin tracks of one other skier who had arrived after us. These crossed the river at a different point, with a much nicer approach from the forestry road. Once back at the forestry road we donned skins again for the 2km or so walk out.

The snow conditions were such that we weren’t motivated to lap the upper northeast face, so we were back at the car by 11am. After quick lunch at the car, we were soaking in the Hokuryu onsen by just after noon.

Comments | Queries | Reports

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

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Etai-dake Difficulty Rating

Category

Grade

Points

Strenuousness

Vertical Gain

A

40

Time ascending

B

6

Technicality

Altitude

B

6

Hazards

C

6

Navigation

C

6

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.