The Saale originates on the slope of the
Großer Waldstein mountain near
Zell in the
Fichtel Mountains in
Upper Franconia (
Bavaria), at an elevation of . It pursues a winding course in a northern direction, and after passing the manufacturing town of
Hof, enters
Thuringia. It flows amid well-wooded low mountains of the
Thuringian Forest until it reaches the valley of
Saalfeld. After leaving Saalfeld the Saale reaches
Rudolstadt. Here it receives the waters of the
Schwarza, in whose valley lies the ruined castle of
Schwarzburg, the ancestral seat of the formerly ruling
House of Schwarzburg. From Saalfeld, the Saale enters the limestone hill region north of the Thuringian Forest, and sweeps beneath the hills enclosing the
university town of
Jena. It enters
Saxony-Anhalt and passes the spa of
Bad Kösen and, after receiving the deep and navigable
Unstrut at
Naumburg, flows past
Weißenfels,
Merseburg,
Halle,
Bernburg and
Calbe. It finally joins the Elbe just above
Barby, after traversing a distance of —shortened by a bypass from its natural length of . The Saale is navigable from Naumburg and is also planned connected from
Leuna with the
White Elster near
Leipzig by an unfinished canal. The soil of the lower part of its valley is exceptionally fertile, and produces, amongst other crops, large quantities of
sugar beet. Among its tributaries are the White Elster,
Southern and
Northern Regnitz and
Orla on the right bank, and the
Ilm, Unstrut,
Salza,
Wipper and
Bode on the left. Its upper course is rapid. Its valley, down to Merseburg, contains many castles which crown the enclosing heights. ==Geography==