Val Calanca
The valley is drained by the "Calancasca" , a tributary of the Moesa ( Ticino basin ) , at Roveredo . 
<triplet> Moesa <subj> Ticino <obj> mouth of the watercourse <triplet> Ticino <subj> Moesa <obj> tributary <triplet> Roveredo <subj> Moesa <obj> located in or next to body of water