The Red Main ( German : Roter Main or Rotmain ) is a river in southern Germany . It is the southern, left headstream of the river Main . It rises in the hills of Franconian Switzerland , near Haag and flows generally northwest through the towns Creußen , Bayreuth , Heinersreuth and Neudrossenfeld . It merges with the White Main near Kulmbach to form the Main. The Red Main is 72 kilometres (45 mi) long and descends a total of 283 metres (928 ft).
19-542: The waters of the Red Main flow through a region of clayey soils, which is why the river carries a lot of suspended solids , especially after rainfall, and acquires a red-brown colour, hence the name Red Main. The Red Main rises 10 kilometres (6.2 mi) south of Bayreuth near Hörlasreuth ( Creußen ) in the Lindenhardt Forest at a height of 581 m above sea level (NN) . The source of
38-468: A colloid or due to motion of the water. Suspended solids can be removed by sedimentation if their size or density is comparatively large, or by filtration. It is used as one indicator of water quality and of the strength of sewage , or wastewater in general. It is an important design parameter for sewage treatment processes. It is sometimes abbreviated SS , but is not to be confused with settleable solids , also abbreviated SS, which contribute to
57-536: A flood channel at times of high water and has a very wide river bed. It is partly covered by two car parks. Beyond Bayreuth the Red Main flows northwest in wide meanders through a broad valley, past the villages of Heinersreuth and Neudrossenfeld . South of Kulmbach , near Steinenhausen Castle, it is united with the White Main , which rises in the Fichtel Mountains near Bischofsgrün . The Red Main
76-434: A municipal level). By eliminating most of the suspended solids in a water supply, the significant water is usually rendered close to drinking quality. This is followed by disinfection to ensure that any free floating pathogens, or pathogens associated with the small remaining amount of suspended solids, are rendered ineffective. The use of a very simple cloth filter , consisting of a folded cotton sari , drastically reduces
95-542: Is 73 kilometres (45 mi) long (source to mouth), the White Main 52 kilometres (32 mi). At the confluence of the two headstreams a bridge was built in 2009 where the young Main may be crossed right at its beginning. Information boards on the bridge describe the rest of the river's course, the local walking and cycle routes and the surrounding countryside. In the vicinity of the Bodenmühle mill east of Bayreuth
114-539: Is in the Fichtel Mountains in north Bavaria . Its emblem is the Arctic starflower (the Siebenstern ). The aims of the club are the fostering of hiking, training of hiking guides, marking of footpaths, construction and maintenance of rock climbing facilities, observation towers and accommodation facilities, conservation work and support, landscape conservation, support of local culture, monument protection, running
133-474: Is often the most realistic option. This waste -related article is a stub . You can help Misplaced Pages by expanding it . Fichtelgebirge Club The Fichtelgebirge Club ( German : Fichtelgebirgsverein or FGV ) is a large walking club and local heritage society in Bavaria and recognised conservation group with 20,000 members in 55 local groups. As the name says, its main sphere of activity
152-746: The Fichtelgebirge Museum and other local history and natural history collections, publication of the club magazine Der Siebenstern and other heritage publications, youth work and youth support. In 1878 the Fichtel Mountains Section ( Sektion Fichtelgebirg ) of the German and Austrian Alpine Club was founded in Wunsiedel . From the outset it focussed only on the development of the Fichtel Mountains. In 1888
171-581: The Münzgasse . Behind the former state central bank it disappears into a tunnel and surfaces again opposite the Graser School just before reuniting with the northern branch. In the late 1990s a section of the channel in Opernstraße was exposed and swept up as part of the rebuilding at the southern end of Luitpoldplatz . The northern arm usually carries only a small amount of water, but acts as
190-525: The Second World War , which had brought the club's activities to a standstill, it underwent a rapid regeneration which saw the foundation of numerous youth groups . In 1936 the headquarters of the club moved to Hof ; it returned to Wunsiedel in 2003/04. The club headquarters is at Theresienstraße 2, 95632 Wunsiedel in the Haus des Fichtelgebirgsvereins (near the market place and town hall). There
209-655: The Red Main ( Rotmainquelle ) was impounded in stone in 1907, the water flows out of a small wooden pipe. Its source region lies in the Franconian Switzerland - Veldenstein Forest Nature Park. Geologically it belongs to the Brown Jura . The Red Main flows initially in a southeasterly direction, before it swings northeast and passes through Creußen . From there it heads almost due north and then turns west beyond Eremitage . It passes through
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#1732776690978228-527: The Red Main has carved out a bluff ( Prallhang ) on a bend in the river caused by erosion , the so-called Bodenmühlwand , a steep slope 20 metres (66 ft) in height. This has exposed rock strata from the Middle Keuper period . Around 225 million years ago the area was a coastal region with frequent changes caused in the influence of land and sea. As a result, today, layers of claystone and Benker sandstone ( Estheria ) lie on top of each other. In
247-629: The Upper Palatinate Forest Club ( Oberpfälzer-Wald-Verein ) also begins near the source. Here the trail is marked by at red diagonal cross on a white background. The 93 km long route is as follows: Source of the Red Main-Creußen-Seidwitz-Frankenberg-Neustadt am Kulm-Erbendorf-Falkenberg-Tirschenreuth-Griesbach. Suspended solids Suspended solids refers to small solid particles which remain in suspension in water as
266-429: The blocking of sewer pipes. Suspended solids are important as pollutants and pathogens are carried on the surface of particles. The smaller the particle size, the greater the total surface area per unit mass of particle in grams, and so the higher the pollutant load that is likely to be carried. Removal of suspended solids is generally achieved through the use of sedimentation and/or water filters (usually at
285-712: The latter, geologists found fossils of ostracods ( Palaesteria minuta ), after which the layers are named (in German), the remains of coelacanth as well as the scales, teeth and fin spines of prehistoric sharks. The highest and thickest rock layer belongs to reed sandstones ( Stuttgart-Formation ) of the Carnian stage. The Red Main is a habitat for brown trout , grayling , barbel , bullhead , lamprey , carp , tench , carp bream , roach , perch , pike , pike-perch , eel and burbot . The Red Main Trail ( Rotmainweg ), which
304-483: The load of cholera carried in the water, and is suitable for use by the very poor; in this case, an appropriate technology method of disinfection might be added, such as solar water disinfection . A major exception to this generalization is arsenic contamination of groundwater , as arsenic is a very serious pollutant which is soluble, and thus not removed when suspended solids are removed. This makes it very difficult to remove, and finding an alternative water source
323-624: The section was disbanded and the FGV founded with its headquarters in Wunsiedel. For a long time it was headed by the master forester ( Forstmeister ) of Wunsiedel. Over the course of time branches were formed in the surrounding villages and around the turn of the 20th century membership numbers had risen to 1000. The club enjoyed encouraging growth Aufschwung after the First World War , in 1924 it had 38 local branches with 7000 members. After
342-534: The town of Bayreuth from east to west. In the town centre it has been confined since the 1970s in a concrete channel and partially covered. In the vicinity of the Bayreuth folk festival square the river divides into two branches. The southern branch is called the Mühlkanal , because it used to feed several mills within the town. Its water flow is held roughly constant by a weir and it runs above ground as far as
361-789: Was laid out by Fichtelgebirge Club , begins near the source. This main footpath is marked by a red M on a white background throughout its length. Its 60 kilometre long route is as follows: Source of the Red Main-Creußen-Eimersmühle-Schlehenberg-Eremitage-Bayreuth-Martinsreuth-Altenplos-Grüngraben-Jöslein-Langenstadt-Affalterhof Katschenreuth-Steinenhausen Castle near Kulmbach (confluence with the White Main). The Main-Mies Trail ( Main-Mies-Weg ), established by
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