a river of Bohemia, rising in the Bohemian Forest, on the frontiers of Bavaria, and flowing in a S.E. direction as far as Rosenberg. It then turns to the N., and continues generally in this direction till it joins the Elbe at Melnik, after a course of 230 miles. The most important tributaries of the Moldau are the Luschnitz and the Sazava on the right, and the Wattava and the Beraun on the left. The principal towns on its banks are Rosenberg, Budweis, and Prague. In the lower part of its course the Moldau is a large river, and contributes more water to the Elbe than the Upper Elbe itself. It abounds in fish, and is navigable to Prague for vessels of 60 tons, to Budweis for barges of 10 or 15 tons, and to Rosenberg for smaller craft.