Gallery forest of the Nágima river Nature · Serón de Nágima, Las Vicarías, Soria Image of Serón de Nágima, not of the place itself. The Nágima crosses the municipal district on its way to the Jalón and sustains a scant gallery forest of willows and poplars, protected within the Natura 2000 site Quejigares de Gómara-Nágima, between dry-farmed slopes. Photo: Dgarcia29 (CC BY-SA 3.0) What to see and do in Serón de Nágima