Someș

The Someş is a Tisza tributary that flows through Hungary and Romania. It is 241 miles long including its source river Someșul Mare. The Someș is Hungary's seventh longest river. The hydrographic basin is formed by the confluence of the Someșul Mare and Someşul Mic rivers in Mica, a commune about 4 kilometers upstream of Dej. Someșul Mic originates in the Apuseni Mountains, whereas Someșul Mare originates in the Rodna Mountains.

Someșul Mare has a length of 130 kilometers, an area of 5,033 square kilometers, and a little asymmetry in favor of the basin's left side. For the entire Someș basin, the asymmetry on the left gets more evident between Dej and Ardusat, then reverses after getting the Lăpuș on the right side. The valley of Someșul Mare is rich in auriferous alluvium, which was brought to the surface using conventional methods until the early twentieth century. According to experts, gold grains weighing 21 carats were discovered in the Someșul Mare.

Length: 241 miles (shared with Romania)