Kusichaka River

Kusichaka River (Quechua kusi delight, joy, happiness / merry, joyful, content, happy, chaka bridge, "joy bridge", hispanicized spellings Cusichaca, Cusichaka, Kusichaca) or K'usichaka River (k'usi a cucurbit species, a small zucchini or Cucurbita pepo, "zucchini (or Cucurbita pepo) bridge"), is a river in Peru located in the Cusco Region, Urubamba Province, on the border of the districts Machupicchu and Ollantaytambo. Its waters flow to the Willkanuta River.

Kusichaka River originates in the Willkapampa mountain range east of the mountain Salkantay, south of the Pallqay (Paljay) and southwest of the Wayanay. Its direction is mainly to the northeast along the villages Pampaqawana (Pampacahuana), Ch'uru (Churo), Pawqarkancha (Paucarcancha), Ranrapata and Inkachimpa (Incachimpa).

Some of its little affluents are Llulluch'a River (Llullucha) from the left and Ch'urumayu (Churomayo) and Kiskamayu (Quesjamayo) from the right. Shortly before the Kusichaka River meets the Willkanuta River it flows along the archaeological site Patallaqta. The confluence of the rivers is between the villages Quriwayrachina (Qoriwayrachina) and Pincha Unuyuq (Pichanuyoc, Pinchaunuyoc).