Oker Dam

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.

Romkerhall (also frequently called Romkerhalle) is a popular tourist destination on the River Oker in the Harz Mountains of Germany. There is a public car park here as well as a hotel and restaurant opposite the Romkerhall Waterfall. Romkerhall lies within the unincorporated area of Harz in the Lower Saxon county of Goslar in the Harz Mountains. The hotel and waterfall form a small tourist attraction which is marketed as the "Kingdom of Romkerhall - the smallest kingdom in the world!" (German: "Königreich Romkerhall − das kleinste Königreich der Welt!")

The Feigenbaumklippe is a rock formation in the Oker valley in the Harz mountains of central Germany. They lie on the hiking trail from the Kästeklippen crags to Romkerhall Waterfall. These granite rocks, which show clear signs of "wool sack weathering" (Wollsackverwitterung) are a favourite destination for hikers and offer a good view of the valley towards the west. The observation point has safety railings.

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 Kästeklippen, often shortened to Käste, is a rocky tor above the Oker valley in the Upper Harz mountains of central Germany. It lies at a height of 602 m above NN. Near the Käste are other similar granite rock formations such as the Hexenküche ("Witch's Kitchen"), Mausefalle ("Mousetrap"), Feigenbaumklippe and the Treppenstein. Next to the observation platform is a protruding rock which resembles the face of an old man and is called Der Alte vom Berge ("Old Man of the Mountain"). The rocks consist of granite "wool sacks", typical of the Harz region. The Kästeklippen (Klippen = crags) are a popular destination in the Harz. From here, there are views to the Sudmerberg hill in the borough of Goslar. Numerous paths lead from the Oker Reservoir, Romkerhall, Oker, Göttingerode and Bad Harzburg up to the Käste. The most important access route is the Kästestraße. It runs from Bad Harzburg up to the Schlackenplatz on the Morlberg and then continues at a height of just under 600 m over the Alte Schlewecke and the crags of the Stiefmutterklippen to the Käste. From there it goes downhill again, past the Hinterer Ziegenrücken and Vorderen Ziegenrücken to Oker. The Kästestraße was once tarmacked all the way from Bad Harzburg to the Käste. Remnants of the asphalt surface can still be seen today. From the beginning of April to the end of October a bus service runs from Bad Harzburg to the Käste. The Kästehaus restaurant was demolished in 2019. The Kästehaus is checkpoint no. 118 in the Harzer Wandernadel hiking trail network.

The Treppenstein is a rock formation in the Oker valley in the Harz mountains of central Germany. It lies on the trail from the Romkerhall Waterfall to the Kästeklippen. The rocks consist of granite and have clearly undergone so-called "wool sack weathering" (Wollsackverwitterung).The Treppenstein is a popular destination and part of the system of checkpoints (no. 117) in the Harzer Wandernadel hiking trail network. The summit has safety railings and may be climbed using steps hacked out of the rock and flights of stairs attached to the rocks. From the summit there is a view towards the west. In addition, part of the rock formation, the Kleine Treppenstein is used for rock climbing. The routes here are rated as Grade VI (UIAA).

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 Abzucht, also known in its upper reaches as the Wintertalbach, is a 12.1-kilometre (7.5 mi) long, orographically left-hand, tributary of the Oker in Lower Saxony, Germany. The stream flows through the town of Goslar.

The Rammelsberg is a mountain, 635 metres (2,083 ft) high, on the northern edge of the Harz range, south of the historic town of Goslar in the North German state of Lower Saxony. The mountain is the location of an important silver, copper, and lead mine. When it closed in 1988, it had been the only mine still working continuously for over 1,000 years. Because of its long history of mining and testimony to the advancement and exchange of technology over many centuries, the visitor mine of Rammelsberg was inscribed as a UNESCO World Heritage Site in 1992.

The Dyke Ditch (German: Dammgraben) is the longest artificial ditch in the Upper Harz in central Germany. Its purpose was to collect surface runoff for the operation of the Upper Harz mining industry from precipitation-heavy regions a long way away (particularly from the Bruchberg and parts of the Brocken massif). It was laid in 1732 and continually extended eastwards until 1827. Its original length was about 25 km; this was successively shortened by water tunnels between 1820 and 1861 to around 19 km. It is a central component of the Upper Harz Water Regale. Its takes its name from the Sperberhai Dyke which is, in fact, an embankment on top of which the Dyke Ditch runs in an aqueduct in order to cross a depression.

The Zwinger in Goslar is a battery tower that is part of the fortifications of the old imperial city of Goslar, Germany. It is located on the Thomaswall in the south of the town and was built in 1517. On this side Goslar was strongly dominated by the nearby hill of Rammelsberg, which would have made a good location for positioning enemy guns in the event of an attack on the town; the town fortifications therefore needed the extra protection of a strong battery tower at this point. The stonework of Goslar's Zwinger was predominantly made of sandstone quarried from the Sudmerberg northeast of Goslar and mortared with burnt lime. Because lime burning was still in not fully developed, the builders mixed the mortar with horsehair, quark, goat's milk and ox blood to harden it fully. Immediately under the corbelling are two sandstone tablets in the wall bearing the coats of arms of the German Empire and the town of Goslar and the inscription "Anno dm M D X V II". The original conical roof was dismantled in 1857. With a wall thickness at the base of 6.5 metres, a diameter of 26 metres and a height of 20 metres, the Zwinger is one of the strongest surviving and utilised defensive towers in Europe. The Goslar Zwinger has been privately owned since 1 August 1936. Today it houses a restaurant on the ground floor, three holiday apartments on the middle floor and a small museum of medieval weapons, armour and torture implements on the top floor.

The church known as Goslar Cathedral (German: Goslarer Dom) was a collegiate church dedicated to St. Simon and St. Jude in the town of Goslar, Germany. It was built between 1040 and 1050 as part of the Imperial Palace district. The church building was demolished in 1819–1822; today, only the porch of the north portal is preserved. It was a church of Benedictine canons. The term Dom, a German synecdoche used for collegiate churches and cathedrals alike, is often uniformly translated as 'cathedral' into English, even though this collegiate church was never the seat of a bishop.