Kamikochi/Azusa River in the cold winter (IMAGE) Shinshu University Caption The Kamikochi is a sub-alpine zone (1500-1600m altitude) where the temperature drops below -20 ℃ in the midwinter. Credit Masaki TAKENAKA, Shinshu University Usage Restrictions Credit must be given to the creator. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.