Tributaries of the Serio

The Serio (Lombard: Sère) is an Italian river that flows entirely within Lombardy, crossing the provinces of Bergamo and Cremona. It is 124 kilometres (77 mi) long and flows into the Adda at Bocca di Serio south of Crema. Similar to all Lombardian rivers, it forms part of the Po drainage area.

Morla is a 16 km long river in province of Bergamo. Its source is located in Maresana in the municipality of Ponteranica, then Morla crosses the city of Bergamo, after Bergamo part of its waters are used in agriculture. Morla wastes in Po Valley.