It is located in the Junín Region, Yauli Province, Marcapomacocha District.

[citation needed] It has a catchment area of 141 square kilometres (54 sq mi).

[3] The area where Lake Marcapomacocha is located is important for the breeding of the andean goose, the crested duck and the giant coot.

[4] Bogs in the area are home to the rare diademed sandpiper-plover.

[5] The most important threats to the lake are the excessive hunting and the manipulation of water levels.