Castellano (river)

Castellano
Castellano
Country	Italy
Basin features
Main source	Monti della Laga 1,900 m (6,200 ft)
River mouth	Tronto 42°51′24″N 13°35′01″E / 42.85666°N 13.58349°E / 42.85666; 13.58349Coordinates: 42°51′24″N 13°35′01″E / 42.85666°N 13.58349°E / 42.85666; 13.58349
Physical characteristics
Length	40 km (25 mi)
Discharge	Average rate: 3 m³/s (110 cu ft/s)

The Castellano is a river in Italy. Its source is in the Monti della Laga mountains near the border between the province of Teramo and the province of Rieti north of Monte Gorzano. It flows northeast through the mountains in the province of Teramo and eventually forms the border between the province of Teramo and the province of Ascoli Piceno. The river flows west of Monte dei Fiori before entering the province of Ascoli Piceno. The river joins the Tronto at Ascoli Piceno.