Nudo zempoaltepetl

Cempoaltépetl rises above the Sierra Mixe, east of the neighbouring Sierra Juárez in the northern mountains of Oaxaca. It is the highest summit of the Mixe range, reaching some 3,389 metres. Streams descend from its slopes through the country around Tlahuitoltepec; the Yacochi and other rivers join waters that eventually feed the Papaloapan basin.