Jisk'a Iru Muqu (Aymara, jisk'a small, iru a type of grass, (Festuca orthophylla), muqu knot; joint of a part of the reed,[2] also spelled Jiskairumoko, Jisk'airumoko) is a pre-Columbian archaeological site 54 kilometers (34 mi) south-east of Puno, Peru.

The site lies in the mountains at elevation 4,115 meters (13,500 feet), in the Aymara community of Jachacachi, adjacent to the Ilave River drainage, of the Lake Titicaca Basin, Peru.

Under the direction of Aldenderfer, a team from University of California, Santa Barbara, including Nathan Craig and Nicholas Tripcevich, conducted additional excavations at the site during the austral winters of 1999–2004.

Jisk'a Iru Muqu plays a significant role in understanding the pre-Columbian history of Andean Peru due to: early prestige objects, architectural transitions, variation in structure internal organization, ritual preparation embedded in domestic use areas, and the formation of regular trade routes.

Nine gold beads were found in the grave of an older adult and a juvenile buried adjacent to a Terminal Archaic pit house.

The burial of the objects with the deceased implies the wealth and prestige of its owner through the disposal and remove from display and recirculation.

The find bolsters the concept that metalworking developed from multiple independent technologies that were focused on native materials.

Among mobile peoples, increased formality in the internal organization of space tends to be correlated with longer term residential occupations.

The numerous small alcoves suggest that storage was limited, and that resource distribution was a household affair that was not mediated by an individual with supra-household authority like a headman.

In the sense used by Émile Durkheim, the Late and Terminal Archaic residents of Jiskairumoko exhibited a simple cultural pattern.

During later periods of time in Andean Pre-Columbian history cultures became much more complex, and often ritual architecture is separated from domestic structures.

The remains of potato and Phaseolus were identified from starch grains recovered from grinding tools found at the site.