Huayhuash (possibly from Quechua waywash, weasel, or waywashi, squirrel) is a mountain range in Peru’s Andes, straddling the regions of Ancash, Lima, and Huánuco. It has been protected since 2002 as part of the Cordillera Huayhuash Reserved Zone.
In 2008, the International Space Station observed the Huayhuash range.
More details: Maraón fold and thrust belt
The Huayhuash range is 30 kilometres long from north to south and contains seven peaks above 6000 metres, including Yerupajá, Peru’s second highest peak at 6,617 metres (21,709 feet).
Siula (6,344 m), another notable peak, was made famous by mountaineer Joe Simpson in his book Touching the Void. Waywash lacks broad valleys and has higher mountain passes than the neighbouring Cordillera Blanca. There are numerous lesser peaks surrounding the ice-covered peaks, as well as several passes that exceed 5,000 metres. It is necessary to travel a significant distance from the central location to find ground lower than 3,000 m, even on valley floors, and the range is often taken to include this much larger area. The range’s vegetated areas are a part of the Central Andean wet puna ecoregion.
The area is sparsely populated, with the few hamlets that do exist being quite small and generally only found below 4000 m. (the snowline is found at approximately 4,800 m). Chiquián (3,400 m) and Cajatambo are the closest communities (3,375 m). Because mining occurs in the area, there is an unsurfaced road running up to 4750 m to the north of the mountains. [Citation required] The Peruvian Ministry of Agriculture designated the Huayhuash mountain range as a “reserved zone” in 2002, prohibiting some economic operations, including potential mining. […]Cordillera Huayhuash – Wikipedia
Peaks : Cordillera Huayhuash – Wikipedia
Lake Mitococha or Mitucocha (possibly from Quechua mit’u, mitu mud, qucha lake, “mud lake”) is a lake in Peru’s Huanuco Region, Lauricocha Province, and Queropalca District. It is 4,270 metres (14,009 feet) above sea level. It is located on the east side of the Huayhuash mountain range, north-east of Mituraju and Rondoy. Lake Mitococha is 0.83 km long and 0.3 km wide at its widest point. File:Mitucocha.jpg – Wikipedia
The range has become well-known for hiking in the shape of the Huayhuash Circuit, which is considered quite difficult and is unquestionably far more difficult than Peru’s famous Inca Trail in the south. Fewer people trek the Cordillera Huayhuash than the adjacent Cordillera Blanca. Depending on the route taken, the circuit usually takes between ten and fourteen days. Because the majority of the trekking and most of the campsites are above the 4,000 m tree line, the scenery appears harsh and rocky, with vistas over large distances. The area is well-known for its breathtaking glacier lakes…[…]Cordillera Huayhuash – Wikipedia
Image  “Cordillera Huayhuash, Peruvian Andes : Image of the Day”. earthobservatory.nasa.gov. 2008-05-17. Retrieved 2016-11-22. NASA, Public domain, via Wikimedia Commons
Mitucocha camp image : No Author listed, creative commons with reservations