Cusichaca River

Cusichaca River (possibly from Quechua kusi delight, joy, happiness / merry, joyful, content, happy, chaka bridge, "joy bridge", or 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 Vilcanota River. Cusichaca River originates in the Vilcabamba mountain range east of the mountain Salcantay, south of the Paljay and southwest of the Huayanay.

Its direction is mainly to the northeast along the villages Pampacahuana, Churo, Paucarcancha, Ranrapata and Incachimpa. Some of its little affluents are Llullucha River from the left and Churomayo and Quesjamayo from the right. Shortly before the Cusichaca River meets the Vilcanota River it flows along the archaeological site Patallacta. The confluence of the rivers is between the villages Qoriwayrachina and Pichanuyoc or Pinchaunuyoc. The Cusichaca valley is an archaeologically important region in Peru, significant for the evidence that it has provided of Inca civilization.

It was an agriculturally important part of the Inca Empire. The valley