Harz (Landkreis Goslar)

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 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 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 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.

Altenau ([ˈaltə.naʊ] ) is a town and a former municipality in the district of Goslar, in Lower Saxony, Germany. Since 1 January 2015 it is part of the town Clausthal-Zellerfeld. It is situated in the middle of the Harz mountains, between Clausthal-Zellerfeld and the Brocken. It was part of the former Samtgemeinde ("collective municipality") Oberharz.

The Huttaler Widerwaage is a small reservoir that is a part of the Upper Harz Water Regale, an old mining water management system in the Harz Mountains of Germany that is now a UNESCO World Heritage Site. The reservoir lies east of the mining town of Clausthal-Zellerfeld. It is designed to feed water from the Huttal river during times of low water to the reservoir pond of the Hirschler Teich and, during times of high water, to handle the overflow of water from it.

Auf dem Acker (commonly called the Acker) is a mountain ridge up to 865.1 m (2,838 ft) high, which is located in the southwestern part of the Harz mountains in Lower Saxony (Germany).

Schulenberg im Oberharz (German pronunciation: [ˌʃuːlənbɛʁk ʔɪm ˈʔoːbɐhaːɐ̯ts]) is a village and a former municipality in the district of Goslar in Lower Saxony, Germany. It has been part of the town Clausthal-Zellerfeld since January 1, 2015.

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 Kleiner Wurzelnberg hill rises to a height of 610 m above NN in the Harz mountains of Germany, 3.7 km northeast of Sieber in the district of Göttingen in Lower Saxony. It forms a rounded summit (Kuppe) on one of the ridges running south of the Acker which acts as the watershed between the Verlorene Kulmke and the Kleine Kulmke. The Großer Wurzelnberg is located 750 metres further east on the other side of the valley of the Kleine Kulmke.

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.

Schwarze Kulmke is a small river of Lower Saxony, Germany. It flows into the Verlorene Kulmke near Herzberg am Harz.