Yoichi-dake

Every field shows its source and check date. A field without data says UNKNOWN; nothing is left blank or guessed.

Name / area

余市岳 · Yoichi-dake

Sapporo / Kiroro

Source: SnowWind areas dataset

Elevation

1488 m (surveyed summit height)

1487 m (highest point in the terrain data, DEM10B) · ↕ 968 m

Source: GSI (surveyed heights, DEM10B) · Checked 2026-09-23

Municipalities

赤井川村 Akaigawa

Source: GSI reverse geocoder · Checked 2026-07-09

Trailheads / parking

UNKNOWN

No parking waypoint in the route data; not compiled yet.

Source: GPX route waypoints

Winter access

Winter road-closure status is published by Hokkaido’s road authorities. We link to the official source; we do not republish or cache it.

北の道ナビ (Hokkaido road information)

Source: Hokkaido road authorities / CERI (link only)

Route aspects

N · E · NW

Aspects the steep sections of recorded routes cross; not the whole mountain.

Source: Computed from DEM10B · Checked 2026-09-23

Terrain class (estimate)

complex 1

Slope-based automatic estimate, not official ATES.

Source: SnowWind slope estimate · Checked 2026-09-23

Recorded routes

1

Route data: CC BY-SA 4.0 (incl. Hokkaido Wilds, CC BY-SA)

Source: CC BY-SA 4.0 · Checked 2026-09-23

Official avalanche bulletin

We link to bulletins and never republish their content.

Japan Avalanche NetworkJapan Avalanche Network — SW Hokkaido (Niseko / Yotei / Yoichi / Shiribetsu)

Source: Japan Avalanche Network / Japan Avalanche Network — SW Hokkaido (Niseko / Yotei / Yoichi / Shiribetsu)

Police station / where to file a 登山届

余市警察署（Yoichi Police Station） · 0135-22-0110 · 赤井川村 Akaigawa（most of the mountain）

札幌方面南警察署（Sapporo Minami Police Station） · 011-552-0110 · 札幌市南区 Sapporo Minami-ku（part of the mountain）

Station numbers are not emergency lines; in an emergency call 110.

余市警察署（Yoichi Police Station）札幌方面南警察署（Sapporo Minami Police Station）北海道警察 オンライン登山計画書Compass 登山届システムYAMAP(道警と閲覧協定)Draft a 登山届 from your plan

Source: 北海道警察 https://www.police.pref.hokkaido.lg.jp/intro/syozai/syozai.html · Checked 2026-07-31 · 登山届 2026-09-06

Emergency huts

UNKNOWN

No hut waypoint in the route data.

Source: GPX route waypoints

Volcano alerts

UNKNOWN

No volcano alert data registered here for this mountain; JMA is the authority.

JMA volcano information

Source: JMA (link only)

Nearest AMeDAS station

小樽（Otaru）· 25 m · 16.5 km

Conditions boardJMA AMeDAS

Source: JMA AMeDAS station table · Checked 2026-09-02

Live camera

UNKNOWN

No live-camera source compiled for this mountain yet.

Source: To be added

Snow season

UNKNOWN

Not compiled yet. Planned from AMeDAS snow-depth history.

Source: To be added

Nearby resorts

Kiroro · 1 km · Sapporo Kokusai · 6 km · Sapporo Teine · 16 km

KiroroSapporo KokusaiSapporo Teine

Source: Straight-line distance between SnowWind 3D dataset centres

Guide services

UNKNOWN

Real guide listings are in preparation; the directory is a fictional sample for now.

Guide directory

Source: SnowWind