The Moltkewarte is located on the Schlößchenkopf (310 m above sea level) south of the Lengefeld district of Sangerhausen.
The observation tower was built in 1903 on the initiative of the Sangerhausen branch of the Harzklub in memory of Helmuth von Moltke (1800 – 1891). Count von Moltke, also known as „the Great Silent One“, was a Prussian field marshal and, as Chief of the General Staff, played a major role in the German victories in the German-Danish War, the Prussian-Austrian War and the Franco-Prussian War.
Since 2007, memorial meetings for his great-grandnephew, the German resistance fighter Helmuth James Graf von Moltke (1907–1945), have been held at the control room on 11 March.
The Rogenstein building material used here is geologically remarkable. It is around 250 million years old and was formed in the turbulent waters of an oversalted sea. Small limestone balls were formed in it by the movements, which outwardly resemble fish roe.
Rogenstein was quarried in several small quarries in the vicinity of the viewing tower. If you follow the signs, you can still visit one of these quarries.
From a parking lot at the „Engelsburg“ forest area above Lengefeld, you can reach the Moltkewarte on a barrier-free hiking trail.
