
Zaō Snow Monsters (Juhyō)
藏王树冰 · Yamagata Prefecture · Yamagata City (Zaō Onsen)
In winter, strong winds freeze droplets and snow layer upon layer onto subalpine conifers, turning whole slopes into a field of juhyō nicknamed "snow monsters". A two-stage ropeway takes you to the area around Jizō Sanchō Station at 1,661 metres, worth seeing both by day and under the night illumination.
Know before you go
- Leaving the path to enter the juhyō field
- climbing or touching the juhyō
- entering areas closed in winter (such as around Okama) on your own
This article is Not yet verified. Please check official announcements for prices, opening hours and dates.
Stories & people
Stories & people
History
Where the "snow monsters" come from
Juhyō are a natural phenomenon: strong winds blow droplets from the air and nearby lake onto the slopes, where they freeze on branches into sideways-growing icicles, and snow then settles on them, building up layer by layer into huge figures of ice and snow. From a distance they look like a crowd of standing monsters, which earned them the nickname "snow monsters".
Source: Wikipedia: Mount Zaō; Official site: Zaō Ropeway – Juhyō
History
A season in the life of the juhyō
According to the Zaō Ropeway, icing and snow build-up begin in November and December; in January, ice formations known as "shrimp tails" grow on the windward side as the trees enter their growth stage; in February they are at their largest; and in March, as temperatures rise, the juhyō gradually melt and collapse.
Culture
Culture & customs
Background
This entry covers the Yamagata side of the Zaō range, around Zaō Onsen in Yamagata City (Yamagata Zaō). The range straddles Yamagata and Miyagi prefectures, and the Miyagi side has its own juhyō viewing area; Zaō Town in Miyagi Prefecture is not the same place as Zaō Onsen in Yamagata City, so keep the two apart when planning. The Zaō range is a cluster of stratovolcanoes whose highest point is 1,841 metres; its most recent eruption was in May 1940. Juhyō are not real monsters: supercooled droplets carried by strong winter winds freeze onto the branches of subalpine conifers such as the Aomori todomatsu fir, forming ice that grows into the wind; snow then settles on top, and layer by layer the trees become huge, oddly shaped figures of ice and snow, hence the English name "snow monsters". Zaō Onsen at the foot of the mountains is known for its milky, sulphur-scented water, and the local Zaō Takayu kokeshi is one of the twelve traditional kokeshi schools of the Tōhoku region. In summer and autumn you can visit the Okama crater lake near the prefectural border; it is closed in winter.
Local customs
- Ride the Sanroku and Sanchō lines of the Zaō Ropeway to Jizō Sanchō Station and walk the juhyō field on the officially designated route
- on certain dates the juhyō are illuminated at night and you can take an evening ropeway for a closer look (dates are subject to the official seasonal notice)
- back down, bathe at Zaō Onsen and visit kokeshi workshops to browse and buy.
Etiquette & taboos
Etiquette & taboos
Don’t DON'T
- Leaving the path to enter the juhyō field
- climbing or touching the juhyō
- entering areas closed in winter (such as around Okama) on your own
- bringing skis or snowboards into the viewing area to slide
Locals appreciate DO
- Walk on the officially designated route
- wear anti-slip winter boots and bring full cold-weather clothing
- follow local hot-spring bathing etiquette
- check official ropeway and weather notices before you go
Plan your visit
Practical info
Travel tips
- The juhyō season generally runs from late December to early March. The trees are at their largest in February, which is also when most night illuminations are held
- their shape changes with temperature, wind and snow, and from March they gradually melt and thin, so check the official seasonal notice. Summit temperatures can fall below minus 10 °C and the wind is strong, so be sure to bring full cold-weather gear.
- From the Yamagata Station area, take a bus to Zaō Onsen, then ride the two-stage ropeway up
- the summit area is explored on foot (check official and station notices for services). Summer is good for hiking around the Okama crater lake, and spring and autumn for hot springs and mountain walks.
Photos
Photos

Ymblanter · CC BY-SA 3.0

Suicasmo · CC BY-SA 4.0
Sources & verification notes
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