Maiko Snow Resort Mountain
The landform the resort sits on: the shape of the hill beyond the pistes, how steep it gets, and where it stands among the mountains on JapowDB.
This mountain faces several ways at once, mostly north-west.
Where this vertical sits among the mountains on JapowDB
660 m, more than 16 of the 34 mountains on JapowDB.
The mountain
飯士山 (Iiji-san)
- Landform
- Iiji-san is a volcano. The national geological survey lists it as a composite volcano that was active in the Middle Pleistocene, roughly 300,000 to 200,000 years ago. It records no eruption and no volcanic disaster for it since, and the Meteorological Agency carries no active-volcano entry on it. The summit is 1,112 m. The lifts run up the north side and stop at 913 m, which leaves the top 199 m of the mountain above the highest run. A ridge joins the top station to the summit without losing height anywhere along it. The cone shape gave the mountain its local name, Ueda-Fuji.
- Rock
- The rock under the lifts is andesite and basaltic andesite, both as lava and as pyroclastic rock. Sampled at the 913 m top of the runs and again at 400 m and 300 m, it is the same Quaternary unit the summit is built of. In between, around 550 to 700 m, an older Miocene rock of the same composition comes to the surface. From the base at 258 m to the top station, the lifts serve one kind of rock in two ages.
From published sources, checked by hand · 2026-09-25
That ground is outside the ski area. It is not patrolled.
Measured
01
Which way it faces
Faces north-west.
Most of the mapped runs fall away toward the north-west.
02
How steep it gets
The steepest quarter of the runs faces north, a different way from the mountain overall.
Its steepest pitch measures 34.4°.
Its steepest tenth is steeper than 11 of the 34 mountains here that carry pitch data.
17.1° the steepest tenth of runs
03
How varied it is
Its runs range from 3.6° to 21.0°.
Half of them are gentler than 9.7°. Each mark is one run.
That spread is wider than 19 of the 34 mountains here that carry pitch data.
04
What grows on it
This mountain has both, in separate patches. The deciduous stands drop their leaves and open up for the winter; the conifer stands stay closed.
Read off the national vegetation survey (2024 edition), from fieldwork in 2013.
The forest on this mountain, in detail