The Llanganuco Lakes (Llankanuku in Quechua language), Chinancocha and Orconcocha, are situated in the Cordillera Blanca in the Andes of Peru. They are located in Ancash Region, Yungay Province, Yungay District, about 25 km north-east of Yungay. The lakes are part of Huascarán National Park.

Chinancocha

Lake Chinancocha, (possibly from Quechua china female, -n a suffix, qucha lake, "female lake") lies at an altitude of 3850 m. It is situated southwest of Lake Orconcocha.

Orconcocha

Lake Orconcocha (possibly from Quechua urqu male / mountain, "male lake") lies about 1 km away from Chinancocha at the end of the Llanganuco valley.

1970 Earthquake

An extensive earthquake in 1970 caused an avalanche which created a third smaller lake between the two main lakes. Tragically a group of Czechoslovak professional climbers camping between the two lakes were killed.