A stretch of the River Po on the west Padana plain, including riparian woodlands, freshwater wetlands, poplar Populus plantations and other cultivation.
Four heronries define this area: Garzaia della Tenuta Baraccone, Garzaia di Camino (or di Ghiaia Grande), Garzaia di Valmacca (or G. di C. Mezzano) and Garzaia di Valenza. The first and the last heronries were listed in the previous pan-European IBA inventory (Grimmett and Jones 1989) as subsites 5 and 13 respectively of the IBA `Heronries in the catchment of the upper Po and Sesia Rivers' (former site IT005).
Pressure/threats to key biodiversity
Some or all of the site is covered by a management plan.
National High International None14,000 ha of IBA covered by Regional Nature Park (Po e Orba, 24,854 ha).