Gustav Adolf Stave Church

Hahnenklee is a borough of the city of Goslar, in the German state of the Lower Saxony. It is located within the Harz mountain range between Goslar and Osterode. The population is about 1200 inhabitants.

The Bocksberg is the local mountain for the village of Hahnenklee in the borough of Goslar in the German state of Lower Saxony. It lies southeast of this spa village in the Harz mountains and is 726 m above sea level (NN). It was from here that a 1,350 m (4,429 ft) long bobsleigh and racing toboggan run was laid in 1928, which had to be closed for technical and financial reasons in 1970. Although this mountain lay in the British Zone after the Second World War, the US Army operated a relay station here for their radio traffic between Frankfurt and Berlin. Its red and white transmission mast is used today for mobile telephone communications. It projects above the surrounding trees and is visible from a long way off. On the summit of the Bocksberg there is a restaurant and a wooden observation tower that was built in 1976.

The Upper Harz Water Regale (German: Oberharzer Wasserregal, pronounced [ˌoːbɐhaːɐ̯tsɐ ˈvasɐʁeɡaːl]) is a system of dams, reservoirs, ditches and other structures, much of which was built from the 16th to 19th centuries to divert and store the water that drove the water wheels of the mines in the Upper Harz region of Germany. The term regale, here, refers to the granting of royal privileges or rights (droit de régale) in this case to permit the use of water for mining operations in the Harz mountains of Germany. The Upper Harz Water Regale is one of the largest and most important historic mining water management systems in the world. The facilities developed for the generation of water power have been placed under protection since 1978 as cultural monuments. The majority are still used, albeit nowadays their purpose is primarily to support rural conservation (the preservation of a historic cultural landscape), nature conservation, tourism and swimming. From a water management perspective, several of the reservoirs still play a role in flood protection and the supply of drinking water. On 31 July 2010 the Regale was declared a UNESCO World Heritage Site affiliated with the Mines of Rammelsberg and the Historic Town of Goslar because of its importance in the development of mining techniques and testimony to the medieval history of ore mining.The water system covers an area of roughly 200 square kilometres (77 sq mi) within the Lower Saxon part of the Harz, the majority of structures being found in the vicinity of Clausthal-Zellerfeld, Hahnenklee, Sankt Andreasberg, Buntenbock, Wildemann, Lautenthal, Schulenberg, Altenau and Torfhaus.

The Lower Grumbach Pond (German: Unterer Grumbacher Teich), usually just Grumbach Pond (Grumbacher Teich), is an old mining reservoir or Kunstteich between Hahnenklee and Wildemann in the Upper Harz mountains in Germany It is one of the Upper Harz Ponds and was constructed before 1673. After being raised in height at least once, the dam today is 7.5 metres high and just under 60 metres long. There are nine other ponds within its catchment area, all part of the Upper Harz Water Regale: the Kranicher Teichen, the Kuttelbacher Teich, the Auerhahnteich, the Upper (Oberer) and Middle (Mittlerer) Grumbach Ponds and the Upper and Lower (Oberer and Unterer) Flößteich. Its catchment area is 7.92 km² which is very large for an Upper Harz Pond and results in a high volumetric flow. Its impoundment capacity is 82,000 m³.The pond was not only used for generating hydropower for the pits beneath, but also played an important role in timber rafting on the Grumbach stream to Wildemann. The timber, cut into one to two metre-long logs, was led by a rafting ditch around the pond and slid down the Gefluder in the present day Grumbach Waterfall into the stream. In order to transport the wood further downstream, water was periodically released from the Lower Grumbach Pond which ferried the logs down to the River Innerste.By the Lower Grumbach Pond is a refuge hut with checkpoint no. 113 "Grumbacher Teich" on the Harzer Wandernadel hiking network.

The Upper Harz Mining Museum (German: Oberharzer Bergwerksmuseum, pronounced [ˌoːbɐhaːɐ̯tsɐ ˈbɛʁkvɛʁksmuzeːʊm]) is a museum of technological and cultural history in Clausthal-Zellerfeld in the Harz mountains of central Germany. It is one of the oldest technological museums in Germany and concentrates on the history and presentation of mining in the Upper Harz up to the 19th century.

The Schalke is a mountain, 762 m above sea level (NN), in the Upper Harz in the German state of Lower Saxony. It lies in Goslar district north of Clausthal-Zellerfeld and west of Schulenberg. From 1959 there was a French listening post on the summit, which was supplemented in 1968 by a 64 m high concrete tower. This tower stood empty from 1993 and was demolished on 11 October 2002; the entire facility being removed in September 2003. Other listening posts in the Harz were located on the Wurmberg and the Stöberhai. Towers that still exist include those on the Ravensberg and the Bocksberg, the latter not far from the Schalke. The observation tower, which was about 10.5 m high, stood about 50 metres southeast of the listening post until 2002 and, following the demolition of the latter, was moved back to its original site on the summit. However it only has good views towards the east and south. The view extends from the Brocken past the Wurmberg and Hanskühnenburg to Clausthal-Zellerfeld. Next to the tower stands a shooting hut belonging to the Harz Club and stamp checkpoint no. 125 which is part of the Harzer Wandernadel hiking trail network. The tower is the oldest (built 1892, restored 1992) of four steel observation towers belonging to the Harzklub in the Harz. A road, closed to private cars, runs from the Auerhahn Inn on the B 241 federal highway up to the Schalke. There are also long hiking trails from Zellerfeld and Goslar and a short, steep footpath from Mittelschulenberg past the Lower Schalke Pond and Festenburg, two parishes in Schulenberg, up to the Schalke.

The Upper Harz (German: Oberharz, pronounced [ˈoːbɐhaːɐ̯ts]) refers to the northwestern and higher part of the Harz mountain range in Germany. The exact boundaries of this geographical region may be defined differently depending on the context. In its traditional sense, the term Upper Harz covers the area of the seven historical mining towns (Bergstädte) - Clausthal, Zellerfeld, Andreasberg, Altenau, Lautenthal, Wildemann and Grund - in the present-day German federal state of Lower Saxony. Orographically, it comprises the Harz catchment areas of the Söse, Innerste and Grane, Oker and Abzucht mountain streams, all part of the larger Weser watershed. Much of the Upper Harz area is up to 700 metres (2,300 ft) above sea level. In a wider sense, it also comprises the adjacent High Harz (Hochharz) range in the east, climbing to over 1,100 m (3,600 ft) in the Brocken massif.

The formerly free mining town (Bergstadt) of Lautenthal in Germany is a state-recognised, climatic spa with around 1,570 inhabitants and has been part of the borough of Langelsheim since 1972.

Clausthal-Zellerfeld is a town in Lower Saxony, Germany. It is located in the southwestern part of the Harz mountains. Its population is approximately 15,000. The town hosts the Clausthal University of Technology. The health resort is located in the Upper Harz at an altitude between 390 and 821 m above sea level.

The Clausthal University of Technology (German: Technische Universität Clausthal, also referred to as TU Clausthal or TUC) is an institute of technology (Technische Universität) in Clausthal-Zellerfeld, Lower Saxony, Germany. The small public university is regularly ranked among the Top German universities in engineering by CHE University Rankings. More than 30% of students and 20% of academic staff come from abroad, making it one of the most international universities in Germany. The university is best known for the prominent corporate leaders among its former students. As of 2011, five of the 30 leading companies within the German stock index had alumni of TUC on their management board, with two of them as CEO.

The Emperor William Shaft (German: Kaiser-Wilhelm-Schacht or Schacht Kaiser Wilhelm II.) was the central hoisting and man-riding shaft of the lead and zinc mine in Clausthal-Zellerfeld in the Upper Harz in central Germany. It was sited on the Burgstatt Lode (Burgstätter Gangzug). The surface installations were located in the borough of Clausthal on No. 24 Erzstraße, near the present-day mining institute of the University of Technology.

Oberharz (German pronunciation: [ˈoːbɐhaːɐ̯ts]) is a former Samtgemeinde ("collective municipality") in the district of Goslar, in Lower Saxony, Germany. It was situated in the western part of the Harz, approx. 15 km southwest of Goslar. Its seat was in the town Clausthal-Zellerfeld. It was disbanded in January 2015, when its member municipalities merged into the town Clausthal-Zellerfeld. The Samtgemeinde Oberharz consisted of the following municipalities: Altenau Clausthal-Zellerfeld Schulenberg im Oberharz Wildemann