The forest

What grows on Takasu Snow Park

Mostly deciduous: broadleaf woods and larch. They stand bare through the winter, so you can see a long way into them.

Read from the national vegetation survey. The survey records the cut pistes as open ground, so the ski area shows up on its own.

Plan view of the forest around Takasu Snow Park. Bare deciduous woods pale, evergreen conifer dark, open ground lightest.
Plan view, about 6.6 km across, faintly shaded by the mountain's own relief. The pale threads are the pistes, which the survey records as open ground.
Darker ink is denser forest: evergreen conifer that stays closed through the winter. Paler ink is deciduous forest, bare from November, which you can see a long way into. The palest ink is ground with no forest on it. Every bar below uses the same three inks.
Forest cover
88%
of the ground this map covers
Bare in winter
81%
of that forest loses its leaves in winter
Planted stands
21%
of the classified ground, planted in rows of one age
Natural forest
26%
of the classified ground, level 9 of 10 on the survey’s naturalness scale
Most open at
1,487–1,597m
the height you can see furthest into the trees at
Commonest stand
オオバクロモジ-ミズナラ群集
38% of the ground the survey classified
Plant communities
22
distinct types on this mountain
Surveyed
2007
fieldwork years, not the 2024 edition

Where this mountain sits among the others on JapowDB

least bare 35%94% most bare

Its forest stands barer in winter than 22 of the 49 mountains on JapowDB.

01

Sight range, level by level

This is the mountain seen from the side. How far you can see into the trees changes with height.

Height What you can see through Bare
1,597–1,707 m
100%
1,487–1,597 m
100%
1,377–1,487 m
100%
1,267–1,377 m
96%
1,157–1,267 m
91%
1,047–1,157 m
80%
937–1,047 m
81%
827–937 m
65%
717–827 m
47%
607–717 m
57%
closed 50% 100%
A section through the mountain, base to summit.

Each reading is a share of that band's own forest, not of the mountain, and a band holding too little forest to state one is left blank. The pale bar behind the section is how much ground sits at that height, so a swing over a sliver of mountain does not read as a headline. No treeline is drawn — the survey describes stands, not a line.

02

What stands beside each run

Each run is scored on the band 35 to 90 m either side of its centre line, which is the forest you look at from the piste. Runs are ordered by how much of that band you can see through in winter.

Run The band either side See-through
Champion Course 1,121 m 85%
Challenge Course 328 m 81%
Gold Course 443 m 80%
Diamond Course 1,123 m 78%
Panorama Course 1,579 m 77%
Exciting B Course 1,236 m 75%
Technical Course 261 m 68%
Jinchu A Course 1,015 m 67%
The other 23 runs
Run The band either side See-through
Exciting A Course 818 m 66%
Super Course 282 m 64%
Beta-Alpha Connector 726 m 63%
Challenge B Course 262 m 62%
Bamboo Course 3,013 m 61%
Challenge Tree Run 272 m 60%
Challenge C Course 343 m 60%
Dynamic Course 2,598 m 57%
Rapid Course 626 m 56%
Paradise A Course 1,954 m 56%
Kumadana Course 461 m 55%
Paradise B Course 435 m 53%
Skyline B Course 1,248 m 51%
Jinchu B Course 294 m 48%
Otome Course 278 m 47%
Expert Course 269 m 47%
Skyline A Course 1,250 m 44%
Otome Tree Run 251 m 41%
Beginners Course 1,454 m 38%
Downhill Course 1,536 m 36%
Jinchu Slalom Bahn 327 m 27%
Daiichi Slope 490 m 26%
Karamatsu Slope 410 m 21%

Each figure is a share of the surveyed ground in a band 35–90 m either side of the run. The run itself and the rest of the mountain are outside it. The survey resolves about 16 m on the ground and the band is only a few cells wide, so the figure covers what the band is made of and cannot single out one tree, gap or line of sight. Runs the survey barely covers are left out. The survey has no treeline and no stem-density data.

03

What actually grows here

The survey sorts every polygon into one of its vegetation zones, then names the stand within it. A mountain usually falls into five or six zones, each holding many named stands.

Vegetation zone Share of classified ground Share
Beech-zone regrowth ブナクラス域代償植生 45%
Natural beech-zone forest ブナクラス域自然植生 27%
Plantation and farmland 植林地・耕作地植生 25%
Natural subalpine conifer forest コケモモ-トウヒクラス域自然植生 2%
Other その他 1%
Evergreen broadleaf-zone regrowth ヤブツバキクラス域代償植生 1%
Alpine natural vegetation 高山帯自然植生域 0%

The named stands underneath

The survey’s own community names, largest first. These are proper names for stand types, and the survey publishes them only in Japanese.

  • オオバクロモジ-ミズナラ群集 38%
  • チシマザサ-ブナ群団 26%
  • スギ・ヒノキ・サワラ植林 16%
  • カラマツ植林 4%
  • ススキ群団(V) 3%
  • コナラ群落(V) 2%
The other 16 communities
  • チシマザサ群落(II) 2%
  • 畑雑草群落 2%
  • 水田雑草群落 1%
  • 緑の多い住宅地 1%
  • ササ群落(V) 1%
  • ユキグニミツバツツジ-アカマツ群集 1%
  • チシマザサ群落(IV) 1%
  • 路傍・空地雑草群落 0%
  • 放棄畑雑草群落 0%
  • 雪田草原 0%
  • なだれ地自然低木群落 0%
  • 伐採跡地群落(V) 0%
  • 牧草地 0%
  • 市街地 0%
  • 開放水域 0%
  • ヒノキ群落 0%

Every share is of the ground the survey classified on this mountain, which is more than the forest and more than the ski area. The zones are the survey’s own; the English is a gloss and the Japanese is the source term. Zones are ordered by area, and area has no bearing on how well a zone skis.

04

How natural this vegetation is

The survey grades every polygon on a ten-point scale of how little people have changed it. Level 1 is made ground with almost nothing growing on it; level 10 is natural grassland and alpine heath. The scale measures human interference only. Natural fir sits at 9 and is a wall you cannot see through; a larch plantation sits at 6, evenly spaced and good to ski.

Level Share of classified ground Share
10 Natural grassland and alpine heath 2%
9 Natural forest 26%
7 Secondary forest 41%
6 Plantation 21%
5 Tall secondary grassland 4%
4 Short secondary grassland 1%
2 Farmland and green residential land 5%
1 Built-up and made ground 0%

A fraction of a percent of the classified ground carries a code outside the ten levels. It is left out of the rows above.

Every share is of the ground the survey classified on this mountain. The scale records human interference only; a higher level does not mean better skiing. Levels this mountain does not have are left out.

National vegetation survey, 2024 edition, Biodiversity Center, Ministry of the Environment, Japan. Processed by JapowDB; the Ministry did not produce this version.

This mountain's polygons were walked in 2007. The edition is dated 2024; the fieldwork is older.

Each cell is about 16 m across, roughly the size of a small clearing.