Sumon Dake

About this mountain

Country

Japan

Latitude

37.3977778

Local Name

守門岳

Longitude

139.1366667

Orientation

Hakama-dake is the main peak within a system that also includes Seiun-dake, O-dake and Nakatsumata-dake.

Name

Sumon Dake

Elevation (m)

1537

Region

Niigata

Access & planning

Routes

Options

• Name

  Futakuchi

  Grade

  3-B

  Time (hours)

  6.5

  Distance (km)

  9.4

  Ascent (m)

  1010

• Name

  Ohara

  Grade

  3-B

  Time (hours)

  7

  Distance (km)

  6.9

  Ascent (m)

  900

• Name

  Irishiogawa

  Grade

  5-B

  Time (hours)

  9.3

  Distance (km)

  28.3

  Ascent (m)

  1860

• Name

  Yoshigahira–O-dake–Hakama-dake

  Level

  intermediate or above

  Ascent Hours Approx

  6

  Descent Hours Approx

  5

Current information

Verify current trail and road status with the responsible municipality before travel.

Hazards

Items

• Seasonal road closures normally affect some approaches from mid-November to late May.

• Residual snow can create route-finding and avalanche hazards.

• The Yoshigahira approach includes steep terrain, a documented wrong river-crossing path, and bear risk.

• Deteriorated boardwalk sections may be slippery; check current maintenance information.

Permits & local services

Hazards

Items

• Seasonal road closures normally affect some approaches from mid-November to late May.

• Residual snow can create route-finding and avalanche hazards.

• The Yoshigahira approach includes steep terrain, a documented wrong river-crossing path, and bear risk.

• Deteriorated boardwalk sections may be slippery; check current maintenance information.

Operations

Planning

• Submit a climbing plan and share the itinerary.

• Carry emergency food.

• Check current trail, road, weather and snow information before departure.

Culture & local context

Sumon Daimyojin is enshrined on O-dake, a component peak of the mountain system.

Conservation

Hazards

Items

• Seasonal road closures normally affect some approaches from mid-November to late May.

• Residual snow can create route-finding and avalanche hazards.

• The Yoshigahira approach includes steep terrain, a documented wrong river-crossing path, and bear risk.

• Deteriorated boardwalk sections may be slippery; check current maintenance information.

Conservation

Sumon Dake lies within Echigo Sanzan-Tadami Quasi-National Park. Stay on formal boardwalks and trails where open to avoid trampling adjacent vegetation.

Safety & conditions

Routes

Options

• Name

  Futakuchi

  Grade

  3-B

  Time (hours)

  6.5

  Distance (km)

  9.4

  Ascent (m)

  1010

• Name

  Ohara

  Grade

  3-B

  Time (hours)

  7

  Distance (km)

  6.9

  Ascent (m)

  900

• Name

  Irishiogawa

  Grade

  5-B

  Time (hours)

  9.3

  Distance (km)

  28.3

  Ascent (m)

  1860

• Name

  Yoshigahira–O-dake–Hakama-dake

  Level

  intermediate or above

  Ascent Hours Approx

  6

  Descent Hours Approx

  5

Current information

Verify current trail and road status with the responsible municipality before travel.

Hazards

Items

• Seasonal road closures normally affect some approaches from mid-November to late May.

• Residual snow can create route-finding and avalanche hazards.

• The Yoshigahira approach includes steep terrain, a documented wrong river-crossing path, and bear risk.

• Deteriorated boardwalk sections may be slippery; check current maintenance information.

Operations

Planning

• Submit a climbing plan and share the itinerary.

• Carry emergency food.

• Check current trail, road, weather and snow information before departure.

Conservation

Sumon Dake lies within Echigo Sanzan-Tadami Quasi-National Park. Stay on formal boardwalks and trails where open to avoid trampling adjacent vegetation.