The snow corridor walls can remain standing until late June at this altitude.
Mikurigaike was formed by volcanic activity approximately 10,000 years ago.
The water in Mikurigaike is too acidic for fish to inhabit.
Murodo-daira is one of the few places in Japan where you can observe the wild rock ptarmigan (raicho).
The Tateyama Hotel at Murodo is the highest-altitude hotel in Japan.
Volcanic activity in Jigokudani resulted in the permanent closure of some hiking trails due to toxic gas levels.
The temperature at Murodo is typically 10 to 15 degrees Celsius cooler than in Toyama city.
Murodo has been used as a base for mountain asceticism for over 1,000 years.
Murodo-daira is the highest point on the Tateyama Kurobe Alpine Route, situated at an altitude of 2,450 meters in the Northern Japan Alps. It serves as the primary base for trekking to Mount Tateyama and surrounding peaks. The area features Mikurigaike, a deep blue volcanic crater lake that reflects the surrounding mountain summits. Visitors can observe active volcanic vents at the Jigokudani (Hell Valley) area, where sulfuric gases are emitted. The location is famous for its massive snow corridor, reaching heights of up to 20 meters in early spring. It provides a rare high-altitude alpine ecosystem habitat for the rock ptarmigan, a bird protected as a national natural monument. The area is largely pedestrianized with well-maintained trails leading to various alpine landmarks. Access is strictly limited to public transport vehicles, as private cars are prohibited beyond the base stations.
The lakeside edge of Mikurigaike facing Mount Tateyama for the iconic mountain reflection shot.
Bring polarized sunglasses to protect your eyes from intense UV reflection off the snow.
Layer your clothing, as weather conditions can shift from sunshine to mountain storms within minutes.
Use sunscreen, as the thin atmosphere at 2,450 meters significantly increases UV exposure.
Attempting to hike further peaks without proper mountain gear or checking current trail conditions at the Murodo terminal desk.
The area is inaccessible by public transport from December to mid-April due to heavy snowfall. Parts of the hiking trails may be closed during periods of high volcanic gas output.
Stay on marked trails to protect the fragile alpine vegetation. Do not approach or feed wildlife, especially the ptarmigan.
