Huttaler Widerwaage

The Jägersbleeker Teich in the Harz Mountains of central Germany is a storage pond near the town of Clausthal-Zellerfeld in the county of Goslar in Lower Saxony. It is one of the Upper Harz Ponds that were created for the mining industry. The reservoir lies in the Upper Harz within the Harz Nature Park. It is located around 3.5 km east-southeast of the quarter of Clausthal. Its water surface lies at 586.5 m above sea level (NN), it has a retention capacity of 380,000 m³ and its dam is 13.65 m high. A little below the Jägersbleeker Teich is another pond, the Fortuner Teich. The history of the Jägersbleeker Teich goes back to around 1670.Near the southeastern end of the dam is a refuge hut for hikers named after the forestry official (Forstamtmann), August Weppner, called the August Weppner Hut, inside which is checkpoint no. 127, Weppner Hütte, Jägersbleeker Teich, of the Harzer Wandernadel hiking network.

The Polsterberg Pumphouse (German: Polsterberger Hubhaus) is a pumping station above the Dyke Ditch in the Upper Harz in central Germany which is used today as a forest restaurant. As part of the Upper Harz Water Regale it was built in the 18th century and was used to lift the water needed in Clausthal for the mining industry from the Dyke Ditch (Dammgraben) to the level of the highest pond, the Hirschler Pond. Aside from this water hoist, the Dyke Ditch supplied, and still supplies, water over ditches and tunnels to the Hausherzberg Ponds and the Lower Peacock Pond (Unterer Pfauenteich). The problem was however, that, as it happened, the most productive silver mines in the Upper Harz mining region, the Caroline Pit and the Dorothea Pit, were high up in the mountains and could only be supplied with water power from the Hirschler Pond. The motive force for the wooden piston pumps was won in the Polster valley below by two water wheels. The headrace for these water wheels was brought via the Heller Valley Ditch (Hellertal Graben) from the Heller valley and from the Fortune Pond over its Bottom Ditch (Grundgraben), but frictional losses and poor efficiencies meant that a considerable amount of headrace water was required in order to lift just a few litres of water from the Dyke Ditch. These wheels transferred their output power over 260 and 560 m long flat rods made of wood to the pumping station on the Polsterberg hill. In the pumping station the water from the Dyke Ditch was pumped 8 m higher and fed into drinking troughs from which it was then further transported via the Hutthal Ditch and Huttaler Widerwaage to the Hirschler Pond, or via the Jägersbleek Tunnel and Ditch. The Polsterberg Pumphouse also acted as living accommodation for the master pumper and the ditch keepers, as well as a bar (Schankstube). At the beginning of the 20th century the wooden structures were replaced by electrically-drive pumps; the original can still be seen in the pumphouse by the ditch. Today the building is listed. It is purely run as a restaurant and is a popular destination for walkers from Altenau and Clausthal-Zellerfeld. Like the nearby Sperberhai Dam House it lies on the Harz High Road, the B 242.

The Bärenbrucher Teich ("Bärenbruch Pond") is an historic reservoir in the Harz Mountains of central Germany. It lies east of Buntenbock near Clausthal-Zellerfeld. It belongs to the Upper Harz Ponds, that were originally laid out to supply water power for the Upper Harz mines. Its retaining capacity is 186,000 m³ and its barrage is around 7 metres high. The history of the Bärenbrucher Teich goes back to 1634. The water of the Bärenbrucher Teich can be channelled along the Bärenbruch Ditch (Bärenbrucher Wasserlauf), laid in 1948, through a sequence of six water tunnels and intermediate ditches to the Rosenhof, where it was used to supply power to the Rosenhof Pit and, later, the Ottiliae Shaft Power Station. Another drainage outlet is the normal bottom outlet, which discharges water into the Ziegenberger Teich located immediately below it. Today the Bärenbrucher Teich is normally operated as a spillway basin, that is, the bottom outlets are closed and water simply flows over the spillway into the Ziegenberger Teich. There is a Harzer Wandernadel hiking checkpoint (no. 137) in the refuge hut at the eastern end of the dam.

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 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.

Harz is an unincorporated area in the German district of Goslar. The uninhabited area is located in the Upper Harz (Lower Saxony). With a size of 371.76 km2 (31 December 2006), it is the largest unincorporated area in Germany. Although there are no residents reported, it carries administrative functions; the Community Identification Number is 03 1 53 504. The area extends over large parts of the Upper Harz, from Seesen/Langelsheim in the northwest to Hohegeiß in the south of the district of Goslar. The Harz unincorporated area in the district of Goslar has many enclaves: Thus the community of Clausthal-Zellerfeld has two exclave districts, Wildemann and Altenau-Schulenberg im Oberharz, and the community of Braunlage has an exclave district, Sankt Andreasberg, and other settlements (mostly restaurants) within the Harz area. The administration of the community-free area is the responsibility of the Lower Saxony Forestry Office Clausthal, which also collects business taxes from some quarries and would issue civil status certificate (birth certificate, death certificate) for events that occurred in the area. The forestry office also provides security and order.

The Polster Valley Wheel House (German: Polstertaler Zechenhaus) lies in the Polster valley about three kilometres from Altenau in the Upper Harz region of Germany and is surrounded by a campsite. The wheel house was built in 1729 and provided power for the pumping station of the Polsterberg Pumphouse (Polsterberger Hubhaus) with two water wheels until the early 20th century.

The Sperberhai Dyke (German: Sperberhaier Damm) is in fact an aqueduct which forms part of the Upper Harz Water Regale network of reservoirs, ditches, dams and tunnels in the Harz mountains of central Germany. It carries the water of the Dyke Ditch over the depression of the Sperberhai to the Clausthal plateau. The Sperberhai Dyke was built in 1732 - 34 in order to satisfy the rising demand for water power for the water wheels of the Clausthal mines. The water crossed the embankment in a channel along its crest. The channel is only visible today at its western end. Its hydraulic capacity at peak times was up to 1,000 litres per second.

The small village of Buntenbock lies on the plateau of the Harz mountains in Germany and is part of the mining and university town of Clausthal-Zellerfeld. It is a state-recognised climatic health resort and has accommodation for 200 visitors as well as 700 inhabitants. The village lies on the Innerste at a height of 550–600 m above sea level. Surrounded by meadows, woods and numerous lakes (see Upper Harz Ponds), it is a base for all sorts of leisure activities such as hiking, cycling, fishing, swimming and, in winter, cross-country skiing. From the Kuckholzklippe observation tower there is an impressive view over the mountains to the Harz Foreland. In the nearby refuge hut is a checkpoint (no. 139) on the Harzer Wandernadel hiking network.

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.

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