Elendsburg, Medieval castle ruins in Oberharz am Brocken, Germany.

Elendsburg is the ruin of a castle on a free-standing rock outcrop in the Elendstal valley, about 750 metres east of the Schnarcherklippen, at over 545 metres above sea level in the Harz National Park. No masonry survives, since the stone was used for building blast furnaces at the end of the 18th century. Two terrace levels remain, with steps cut into the rock, ramparts, ditches and a chamber hewn out of the rock.

No written records of the castle survive. It is thought to have served as an outer bailey of the royal hunting court Bodfeld and to have protected the Ulmer Weg trade route through the Elendstal in the Middle Ages. Its masonry was removed at the end of the 18th century to build blast furnaces.

No masonry survives: the castle's stone was quarried away in the late 18th century to build blast furnaces. What visitors see today are two terrace levels cut into the rock, with carved steps, ramparts, ditches and a rock chamber hewn out of the stone.

The site is accessible via marked hiking trails that connect to the wider walking network around Oberharz am Brocken. Wear sturdy footwear suited for mountain paths and allow time for the uphill walk to reach the ruins.

No masonry survives: the castle's stone was quarried away at the end of the 18th century to build blast furnaces. What remains on the free-standing rock reef above 545 m in the Elendstal are two terrace levels with steps cut into the rock, ramparts, ditches and a hewn rock chamber.