Junin National Reservation, Protected natural area in central Andes, Peru

Junín National Reservation is a protected area in the central Andes of Peru that spans the Bombón plateau and includes Lake Junín, the country's second-largest lake. The site sits at roughly 4100 meters above sea level and covers around 530 square kilometers of wetlands, grasslands, and open water.

The Peruvian government created the reserve on August 7, 1974, to protect the lake and its surroundings from growing pollution and exploitation. Before that, the area served for centuries as grazing and fishing grounds for Andean communities.

The reserve's name is tied to the town and lake of Junín, and the lake is also called Chinchaycocha and Lake of the Kings. Its reed beds, the totorales along the shores, shelter resident and migratory birds and amphibians, and sustain vizcachas, wild guinea pigs and foxes adapted to the high puna. The reserve was designated a Ramsar site on 20 January 2001.

Access is via the Central Highway from Lima, with the drive taking around five hours and passing through several Andean passes. Visitors should bring warm clothing and sun protection, as altitude and weather can change quickly.

The reserve is home to the Junín grebe, a bird found nowhere else on Earth that lives only in this highland lake. Altogether, the area provides habitat for 149 bird species, including several migratory species that stop here for rest.