Harz Mountains, the most northerly range of mountains in Germany. The Harz Mountains extend in an arc from the Leine River in the west to the Saale River in the east. The range's greatest length, northwest-southeast, is 60 miles (97 km); its greatest width, 20 miles (32 km). The highest peak is the Brocken, 3,747 feet (1,142 m) above sea level. Many tourist resorts are in the Harz Mountains. Small deposits of various minerals are found, and marble, granite, and gypsum are quarried. The area is noted for its songbirds, especially canaries.