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Upper Harz Water Tunnels
The Upper Harz Water Tunnels (german: Oberharzer Wasserläufe, ) are part of the Upper Harz Water Regale - a network of reservoirs, ditches, tunnels and other structures in the Harz mountains of central Germany. The German term ''Wasserlauf'' refers to the underground element (i.e. the tunnels) of the network of watercourses used in the historic silver mining industry of the Upper Harz. This network of ditches and tunnels was used to supply the mines with headrace waters for their water wheels from the 16th century onwards. In the system of the Upper Harz Water Regale there are over 35 such tunnels with a total length of about . Construction Although explosives were already in use in the 17th century in the mines of the Upper Harz, tunnels continued to be hewn out by hand, that is with hammer and chisel for much longer. The reason was that there were difficulties in determining the right amount of gunpowder and fears that tunnels running just under the surface would collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preussag
TUI Group is a German leisure, travel and tourism company. TUI is an acronym for ''Touristik Union International'' ("Tourism Union International"). TUI AG was known as Preussag AG until 1997 when the company changed its activities from mining to tourism. It is headquartered in Hanover, Germany. It fully or partially owns several travel agencies, hotel chains, cruise lines and retail shops as well as five European airlines. The group owns the largest holiday aeroplane fleet in Europe and holds multiple European tour operators. It is trading as TUI AG jointly listed on the Frankfurt Stock Exchange and the London Stock Exchange as a constituent of the FTSE 250 Index. History The origins of the company lie in the industrial and transportation company Preussag AG, which was originally formed as a German mining company. It was incorporated on 9 October 1923, as ''Preußische Bergwerks- und Hütten-Aktiengesellschaft'' (Prussian Mine and Foundry Company). In 1927 it was merged with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rösche
A ''Rösche'' is a German mining term that refers ''inter alia'' to a gullet (''Wasserseige''), a trench for draining water in the lower part of a mine gallery An adit (from Latin ''aditus'', entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adit .... In order to keep the actual gallery entrance (''Stollenmundloch'') free and guard against backflooding the ''Röschen'' were, in many cases, extended to below the entrance or led even further away, underground, to the nearest stream or river. By contrast the term ''Rösche'' was also used to describe the channels or "leats" through which the driving water for mining equipment was led into the pit (''Aufschlagrösche'' or driving water leats) or out of the pit (''Abfallrösche'' or drainage leats). Unlike a gallery, a leat will have a gentle incline into the pit. Also refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In The Upper Harz
Mining in the Upper Harz region of central Germany was a major industry for several centuries, especially for the production of silver, lead, copper, and, latterly, zinc as well. Great wealth was accumulated from the mining of silver from the 16th to the 19th centuries, as well as from important technical inventions. The centre of the mining industry was the group of seven Upper Harz mining towns of Clausthal, Zellerfeld, Sankt Andreasberg, Wildemann, Grund, Lautenthal und Altenau. History The Upper Harz was once one of the most important mining regions in Germany. The major products of its mines were silver, copper, lead, iron and, from the 19th century, zinc as well. The main source of income, however, was silver. From the 16th to the middle of the 19th centuries about 40–50% of the entire German silver production originated in the Upper Harz. The taxes raised from this contributed significantly to the revenue of the royal houses in Hanover and Brunswick-Wolfenbüttel and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Harz Ditches
The Upper Harz Ditches (german: Oberharzer Gräben, ) are hillside ditches, running roughly parallel to the contour lines, that were laid out in the Upper Harz in Germany from the 16th to the 19th centuries to supply water power to the silver mines there. They are an important component of the Upper Harz Water Regale, a historical water system that is now a cultural monument. Design The ditches consist of a trench and an embankment (''Grabenbrust'') next to it, made of spoil piled up when the ditch was excavated. The embankments are frequently protected from erosion by a dry stone wall. In most cases, they also act as inspection paths for the ditch keepers (''Grabenwärter'') and, today, as public footpaths. The ditches are only inclined at about 1–2 ‰ (i.e. about 1 to 2 millimetres per metre). As a result, they run almost parallel to the contour lines of the terrain. As protection against seepage the embankment and bed of the ditch are usually sealed with grass sods o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Harz Ponds
The Upper Harz Ponds (german: Oberharzer Teiche) are found mainly around the mining town of Clausthal-Zellerfeld and the nearby villages of Buntenbock and Hahnenklee in the Upper Harz mountains of central Germany. There are around 70 ponds in total, both large and small. They were built by the miners of the Upper Harz, mostly between the 16th and 18th centuries, and are important components of the cultural monument known as the Upper Harz Water Regale - a network of dams, ditches, ponds and tunnels that was built to supply much-needed water power for the mining industry in the Harz mountains. Today the Water Regale is being proposed as a UNESCO World Heritage Site. About half the dammed ponds are classified today as reservoirs, but they have now become characteristic features of the Upper Harz and are home to some extremely rare plant and animal species. The Upper Harz Ponds also have the oldest working dams in Germany. Purpose The ponds were originally built for storin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Harz
The Upper Harz (german: Oberharz, ) 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 above sea level. In a wider sense, it also comprises the adjacent High Harz (''Hochharz'') range in the east, climbing to over in the Brocken massif. Geography The region is centred on the geological structure of the region around the municipality of Clausthal-Zellerfeld, merged in 1924. From the Clausthal ''Ku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oker
The Oker is a river in Lower Saxony, Germany, that has historically formed an important political boundary. It is a left tributary of the River Aller, in length and runs in a generally northerly direction. Origin and meaning of the name The river's name was recorded around 830 as ''Obacra'' and, later, as ''Ovokare'' und ''Ovakara''.H. Blume: ''Oker, Schunter, Wabe.'' In: ''Braunschweigisches Jahrbuch für Landesgeschichte'', vol. 86, 2005, p. 14 sqq. The origin of the name is derived from the roots ''ov-'' and ''-akara'' meaning “upper” (cf. New High German ''ober-'') and “onward rushing” (rendered in German as “Vorwärtsdrängende”) as distinct from its tributary, the Ecker, whose name means only “onward rushing”. Course The Oker rises at about 910 metres in the Harz National Park in a boggy area on the Bruchberg in the Harz mountains of central Germany. This early section is known as the ''Große Oker'' ("Great Oker") and it is impounded below A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosenhof Pit
Rosenhof is a hamlet in Coulee Rural Municipality No. 136, Saskatchewan, Canada. The hamlet is located on Range Rd. 123 4 km south of Highway 363, about 15 km south of Swift Current. Demographics In 2010, Rosenhof had a population of 57 living in 20 dwellings. It was founded as a Mennonite settlement, but has seen an influx of other backgrounds in recent years. See also * List of communities in Saskatchewan * Hamlets of Saskatchewan In most cases in Saskatchewan, a hamlet is an unincorporated community with at least five occupied dwellings situated on separate lots and at least 10 separate lots, the majority of which are an average size of less than one acre. Saskatchewan has ... References Unincorporated communities in Saskatchewan Coulee No. 136, Saskatchewan {{saskatchewan-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huttaler Widerwaage
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. Location The Huttaler Widerwaage lies in the Upper Harz in the Harz Nature Park. It is located southeast of Clausthal-Zellerfeld around 550 metres east-southeast of the source of the Innerste and about 500 metres south of the B 242 at Huttaler Graben at about . Function A ''Widerwaage'' is the name used in the region of the Upper Harz Water Regale for a small basin or small impoundment. This particular basin is impounded by a small wooden weir structure, a so-called ''Fehlschlag''. It is linked by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dyke Ditch
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. History The history of the Dyke Ditch was initially closely related to the history of the Sperberhai Dyke. Not until the completion of the dyke in 1734 could large watercourses east of Clausthal be tapped into: the streams of the Großer and Kleiner Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
