The Jach'a Juqhu River (Aymarajach'a big, great, juqhu muddy place,[1] "great muddy place", hispanicized Jachcha Jokho) originates in the Sebastián Pagador Province (which is identical to the Santiago de Huari Municipality), Condo "C" Canton[3][4] at a height of 4,600 m south west of the mountain Wila Qullu. It flows in a northeastern direction. Southwest of the village of T'ula Pallqa the Jach'a Juqhu River meets Pupusa Pallqa River. Now the river successively receives the names T'ula Pallqa, Aguas Calientes and Kachi Mayu. From the point of the confluence with the Ch'illawa River, already in the Potosí Department, Urmiri Municipality, the river gets the name Pillku Mayu.
^ abRadio San Gabriel, "Instituto Radiofonico de Promoción Aymara" (IRPA) 1993, Republicado por Instituto de las Lenguas y Literaturas Andinas-Amazónicas (ILLLA-A) 2011, Transcripción del Vocabulario de la Lengua Aymara, P. Ludovico Bertonio 1612 (Spanish-Aymara-Aymara-Spanish dictionary)
^Jorge Molina Carpio, Daniel Espinoza Romero, Balance hídrico superficial de la cuenca alta del río Pilcomayo, La Paz 2005 (Spanish)
^lib.utexas.edu Map showing Jach'a Juqhu River from the origin