Italienisch Begriff oder Satz:convogliatici di acque
Un promontorio roccioso a ridosso di un profondo canyon, circondato da due ampie valli convogliatici di acque a forma di anfiteatro, al centro di fertili altipiani,
Erklärung: it seems likely that they're river valleys as they channel water, but we need more context in order to be sure. If they ARE river valleys, then this is definitely the best way to translate it.
You could also say "two wide valleys that channel water...", but it sounds less natural.
Sarah Ponting Italien Arbeitsgebiet Muttersprache: Englisch
The translation workplace 
