The Häuschen is a hill, 506.5 m above sea level (NHN) , in the Eifel mountains. It rises near Ahrweiler in the county of Ahrweiler in the German state of Rhineland-Palatinate .
20-609: The Häuschen is located in the Ahr Eifel in the Ahrweiler Forest ( Ahrweiler Wald ). Its summit rises about 4.5 km south-southwest of Ahrweiler , 3 km south of Walporzheim and 2.3 km northwest of Ramersbach , which are all subdistricts of Bad Neuenahr-Ahrweiler in the Ahr valley. It is 2.7 km southeast of the village of Rech , 4 km south-southeast of the village of Dernau and 2.7 km (each as
40-450: A result of new measurements as part of the changeover, however, variations of 0.59 m ( Zugspitze ) have surfaced. Older relief maps often show heights above the old reference planes. Current maps by the federal survey authorities are based on NHN. At the beginning of 2013 most of the federal states (except Berlin, Thuringia and Saxony-Anhalt) had complete coverage by the new digital topographic mapping at 1:25,000 scale (DTK). Not all
60-641: Is also picturesque; the southeastern slopes of the Ahr Hills above the Ahr have vineyards through which one may walk on the Red Wine Trail ( Rotweinwanderweg ). Normalh%C3%B6hennull Normalhöhennull ( German pronunciation: [nɔʁmaːlˈhøːənˌnʊl] , "standard elevation zero") or NHN is a vertical datum used in Germany. In geographical terms, NHN is the reference plane for
80-795: The datum of the Amsterdam Ordnance Datum , known as the German Mean Height Reference System, DHHN92. At the same time, the new NHN is the basis of the United European Levelling Net (UELN), formerly known as the Reseau Européen Unifié de Nivellement or REUN , which standardises the height systems of the European countries. Heights in this system are given in meters above NHN or m (NHN) . The NHN
100-539: The normal height of a topographical eminence height above mean sea level used in the 1932 German Mean Height Reference System ( Deutsches Haupthöhennetz ). The plane is in the shape of a quasi- geoid . The reference height is a geodetic , fixed point on the New Church of St. Alexander at Wallenhorst in the German state of Lower Saxony . The geopotential height of this point was calculated in 1986 as part of
120-839: The Ahr at Walporzheim. To the south-southwest is the confluence of the Ahrbach and Sannerbach which forms the Ahlbach and then flows southwards before joining the Staffeler Bach (a tributary of the Kesselinger Bach ). The Häuschen lies within the natural region major unit group of the East Eifel (no. 27), in the major unit of the Ahr Eifel (272) and the subunit of the South Ahr Upland ( Südliches Ahrbergland , 272.3), its northern flank being part of
140-745: The Eifel including the Ahr Hills ( Ahr Eifel ), of Bad Neuenahr-Ahrweiler in the Ahr Valley and as far as the Siebengebirge and Westerwald . The B 267 runs past the Häuschen to the north through the Ahr valley. The L 84 runs past to the east from Ahrweiler to Ramersbach , and the L ;85 southwest of Kesseling to Staffel and continues east-northeast through Ramersbach. Over
160-538: The United European Levelling Network (UELN), based on the Amsterdam Ordnance Datum . The NHN plane is a theoretical reference plane. It is derived by deducting normal heights from the normal plumb line . The difference between the resulting quasi-geoid and the reference ellipsoid is called the height anomaly or quasi-geoid height. Since 1 January 2000 the whole of Germany has changed its height system over to normal heights based on
180-476: The area was hit by severe rainfall and subsequent heavy flooding. The following towns and villages border the Ahr Hills: Other places in the Ahr Hills include: The Große Eifelroute ("Great Eifel Route"), a tourist route, runs through the Ahr Hills. There are also numerous footpaths for walkers. Amongst its places of interest are Aremberg Castle , on the eponymous hill above Aremberg , and
200-565: The border between the German states of North Rhine-Westphalia and Rhineland-Palatinate . The forested Ahr Hills have numerous tourist destinations (e. g. Aremberg Castle and the Effelsberg Radio Telescope ) and the section of a Roman road with its ancient Eifel Aqueduct . The Ahr Hills are part of the Eifel , the bulk of which lies to the south and southwest of it. It lies on the left, i.e. northwestern, bank of
220-691: The crow flies ) north-northeast of the Kesseling village of Staffel . East of the hill rises the Wingsbach which is fed by the little Talbach and which flows northwards through the valley of Hungertal and empties into the River Ahr at Ahrweiler. To the northwest is the source of the Heckenbach , which is fed by the Beulsbach , runs north through the valley of Heckental and discharges into
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#1732776775753240-526: The hill run several trails including main trail ( Hauptwanderweg ) no. 11 ( Sinzig – Monschau ) of the Eifel Club . Ahr Eifel The Ahr Hills ( German : Ahrgebirge [ˈaːɐ̯ɡəˌbɪʁɡə] or Ahreifel [ˈaːɐ̯ˌʔaɪfl̩] ) are a range of low mountains and hills up to 623.8 m above sea level (NHN) and 25 kilometres (16 mi) long in the Eifel region of Germany , which lie roughly southwest of Bonn on
260-543: The lower subunit of the Middle Ahr Valley ( Mittleres Ahrtal , 272.2) and in the natural room of the Recher Ahrengtal (272.21). The height of the Häuschen is 506.5 m but is sometimes rounded off to 505 m, which relates to the height given on the topographical map of 505.2 m, but is in fact a point about 45 metres east of the summit on a forest track. There is another spot height to
280-577: The maps have appeared in print yet. On the DTK25 maps, NHN is used for elevations; however, on the DTK25-V scanned topographic maps Höhennull (HN) and Normalnull (NN) are still being used. In East Germany normal heights used to be referred to as heights above Höhennormal or HN . The 1958 Kronstadt Tide Gauge ( Kronstädter Pegel ) was used as the datum. The new NHN heights are typically 12–15 cm higher. The maximum deviations in
300-771: The north. To the north the terrain of the Ahr Hills descends into the Cologne Bay , to the east it drops down to the Voreifel and the valley of the Middle Rhine , to the south on the far side of the Ahr is the Eifel proper (up to 747 m), to the west the Zitter Forest and in the northwest the North Eifel . The summits of the Ahr Hills include the: The Ahr Hills is crossed by the following streams, some of which have their sources here: In July 2021
320-467: The river Ahr , roughly 40 km southwest of Bonn . Sometimes the ridge on the right, southeastern, bank of the Ahr in the area of Altenahr is also counted as part of the Ahr Hills. This small range is bordered by a square enclosed by the Grafschaft and Remagen to the east, by Altenahr to the southeast, Antweiler to the south, Blankenheim to the west and Bad Münstereifel and Rheinbach to
340-656: The ruins of the 11th-century castle of Tomburg above Wormersdorf with views of Cologne. Near Effelsberg is the Effelsberg Radio Telescope , on the summit of the Michelsberg is a Catholic chapel , dedicated to the Archangel Michael and regularly visited by pilgrims and walkers. Part of the Roman Eifel Aqueduct , which runs through the northern part of the Ahr Hills, is a popular tourist destination. The Ahr Valley with its wine centres
360-479: The west-northwest of 498.8 m in the col between the Häuschen and its west-northwestern top (501.5 m). On the Häuschen lies part of the protected landscape of the Rhine-Ahr Eifel ( CDDA no. 323834; designated in 1980; 925.86 km² ). Its western flank descends into the bird reserve of Ahrgebirge (VSG no. 5507-401; 304.23 ha ). On 11 May 1908 an observation tower
380-588: Was erected on the Häuschen, the Häuschen Tower ( Häuschen-Turm ), which was 20 metres high. In the final phase of the Second World War (1939–1945) it housed a radio station of the Wehrmacht , and the wooden tower was burned down in spring 1945. On 30 September 1956 a new tower was inaugurated, of which only a few remains exist. From the viewing platform there was an all-round view of
400-517: Was introduced because for heights above Normalnull the actual gravitational field of the Earth was not taken into account. As a result, there were changes in both the old West German normal orthometric heights (new methods of calculation) and the normal heights of East Germany (with respect to the Amsterdam Datum). The elevations differed — depending on location — by 0.06 to 0.16 m. As
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