Caehon de wairasu - Picture book of wild animals

Japanese: カエホン・デ・ワイラス - かえほんでわいらす

...The base for mountaineering and sightseeing is Huaraz. The river valley between the Cordillera Blanca and the Cordillera Negra (Black Mountains) to the west is called Callejón de Huaylas, and is a tourist destination known as the Switzerland of Peru. During the great Peruvian earthquake in 1970, a glacier on the west side of Huascarán collapsed, and the town of Yungay, which is located in a similar position to Mount Fuji and Gotemba, was completely buried under a mudslide, and about 20,000 lives were lost.

From Huaraz

...Population: 65,600 (1990). Located in the center of the Caejon de Huaylas canyon, formed by the Santa River in the Occidental Mountains. Altitude: 3,028 m. …

*Some of the terminology explanations that mention "Caejon de Huaylas" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…登山および観光基地はワラス。コルディエラ･ブランカと西側のコルディエラ･ネグラ(黒い山脈)の間の河谷はカエホン･デ･ワイラスCallejón de Huaylasと呼ばれ，ペルーのスイスと称せられる観光地である。1970年のペルー大地震の際にワスカランの西面の氷河が大崩壊を起こし，ちょうど富士山と御殿場市というような位置関係にあるユンガイ町が土石流の下に完全にうもれ，約2万人の生命が失われた。…