The Kahler Asten () is an 841.9-metre-high mountain in the
Rothaar
The Rothaar Mountains (, , also ''Rotlagergebirge''), or Rothaar, is a low mountain range reaching heights of up to 843.1 m in North Rhine-Westphalia and Hesse, Germany.
It is believed that its name must once have been ''Rod-Hard-Gebirge'', ...
range in the district of
Hochsauerland
Hochsauerlandkreis (, ) is a (district) in the east of North Rhine-Westphalia, Germany. Neighboring districts are Soest, Paderborn, Höxter, Waldeck-Frankenberg, Siegen-Wittgenstein, Olpe, Märkischer Kreis.
The district is named “High Saue ...
, in the German state of
North Rhine-Westphalia
North Rhine-Westphalia or North-Rhine/Westphalia, commonly shortened to NRW, is a States of Germany, state () in Old states of Germany, Western Germany. With more than 18 million inhabitants, it is the List of German states by population, most ...
. It is a popular destination, receiving more than 500,000 visitors annually.
Geography
The ''Kahler Asten'' is located in the northwestern part of the Rothaargebirge in the
Hochsauerland
Hochsauerlandkreis (, ) is a (district) in the east of North Rhine-Westphalia, Germany. Neighboring districts are Soest, Paderborn, Höxter, Waldeck-Frankenberg, Siegen-Wittgenstein, Olpe, Märkischer Kreis.
The district is named “High Saue ...
region, a little southwest of
Winterberg
Winterberg (; Westphalian: ''Winnenmerg'') is a town in the Hochsauerland district of North Rhine-Westphalia, central Germany and a major winter sport resort of the Wintersport Arena Sauerland.
Geography
Winterberg is located in the middle ...
between the villages of
Altastenberg,
Neuastenberg and
Lenneplätze.
Climate
The climate of the Kahler Asten is characterized by high precipitation spread mostly evenly across the year, with a slight peak in winter, resulting in an often massive snowpack. In the
Köppen-Geiger climate classification system it is classified as Cfb (
warm-summer oceanic), but bordering Dfb (
warm-summer humid continental/hemiboreal) and also Cfc (
subpolar oceanic), as only four months have a mean temperature above 10°C; when using the 0°C rather than the -3°C threshold, it is even Dfb proper, like many locations in the higher reaches of Germany's uplands.
Height
Erroneously, the ''Kahle Asten'' is often said to be the highest mountain in North Rhine-Westphalia or even sometimes in the whole of northwest Germany, because it is shown on the
WDR weather map. In fact the highest peak is the 843.1-metre-high
Langenberg on the state border with
Hesse
Hesse or Hessen ( ), officially the State of Hesse (), is a States of Germany, state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt, which is also the country's principal financial centre. Two other major hist ...
;
[Schluka (2006), p 56.] and the nearby summit of the
Hegekopf (842.9 m) in
Hesse
Hesse or Hessen ( ), officially the State of Hesse (), is a States of Germany, state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt, which is also the country's principal financial centre. Two other major hist ...
, where the
Rothaar Mountains
The Rothaar Mountains (, , also ''Rotlagergebirge''), or Rothaar, is a low mountain range reaching heights of up to 843.1 m in North Rhine-Westphalia and Hesse, Germany.
It is believed that its name must once have been ''Rod-Hard-Gebirge'', ...
merge into the
Upland near
Willingen, is even higher. The height of the ''Kahle Asten'' on the latest
topographical map
In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historic ...
s is given as 841.9 m, but its height is also recorded on a marker stone at the spot as 842 m. The ''Kahle Asten'' is therefore only the third highest mountain in the region, but the most well known by far.
Watershed

Part of the Rhine-Weser watershed runs over the ''Kahler Asten'', and the
Lenne
The Lenne () is a tributary of the river Ruhr in the Sauerland hills, western Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north a ...
also has its source near the summit. The enclosed spring, which only wells up from time to time, is located at a height of 820 m and is thus the highest river source in northwest Germany. The Lenne flows west into the
Ruhr
The Ruhr ( ; , also ''Ruhrpott'' ), also referred to as the Ruhr Area, sometimes Ruhr District, Ruhr Region, or Ruhr Valley, is a polycentric urban area in North Rhine-Westphalia, Germany. With a population density of 1,160/km2 and a populati ...
and on into the
Rhine
The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
. Another stream, the
Odeborn, emerges on the southeast slope of the mountain, whilst the
Sonneborn rises on the northeast side and flows southeast. These two streams reach the
Weser
The Weser () is a river of Lower Saxony in north-west Germany. It begins at Hannoversch Münden through the confluence of the Werra and Fulda. It passes through the Hanseatic city of Bremen. Its mouth is further north against the ports o ...
via the
Eder and
Fulda
Fulda () (historically in English called Fuld) is a city in Hesse, Germany; it is located on the river Fulda and is the administrative seat of the Fulda district (''Kreis''). In 1990, the city hosted the 30th Hessentag state festival.
Histor ...
rivers.
Weather station
There is a permanent
German Weather Service weather station on the ''Kahler Asten'' which is part of the weather bureau at Essen. It has contributed significantly to the public's awareness of the mountain.
Hochheide
The summit of the Kahler Asten is part of a mountain heath. Because many rare and threatened species live there, it has been placed under conservation protection as part of the Kahler Asten
nature reserve
A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...
and
Special Area of Conservation
A special area of conservation (SAC) is defined in the European Union's Habitats Directive (92/43/EEC), also known as the ''Directive on the Conservation of Natural Habitats and of Wild Fauna and Flora''. They are to protect the 220 habitats and ap ...
(48.69 ha). Hardly any trees grow on the heath, because the
vegetation
Vegetation is an assemblage of plants and the ground cover they provide. It is a general term, without specific reference to particular Taxon, taxa, life forms, structure, Spatial ecology, spatial extent, or any other specific Botany, botanic ...
is kept short by sheep grazing. In places, however, natural reforestation has already taken a strong hold because the grazing is insufficient. Through manual intervention using chain saws and strimmers, attempts are being made to stop this reforestation. The vegetation consists mainly of
common heather (''Calluna vulgaris''),
mat-grass and
subshrub
A subshrub (Latin ''suffrutex'') or undershrub is either a small shrub (e.g. prostrate shrubs) or a perennial that is largely herbaceous but slightly woody at the base (e.g. garden pink and florist's chrysanthemum). The term is often interch ...
s. Breeding birds on the heath include the
meadow pipit
The meadow pipit (''Anthus pratensis'') is a small passerine bird that breeds throughout much of the Palearctic, from south-eastern Greenland and Iceland east to just east of the Ural Mountains in Russia, and south to central France and Romania; ...
and
tree pipit
The tree pipit (''Anthus trivialis'') is a small passerine bird that breeds throughout most of Europe and the Palearctic as far east as the East Siberian Mountains. It is a long-distance migrant, migrating in winter to Africa and southern Asia. ...
. The
black grouse
The black grouse (''Lyrurus tetrix''), also known as northern black grouse, Eurasian black grouse, blackgame or blackcock, is a large Aves, bird in the grouse family. It is a Bird migration, sedentary species, spanning across the Palearctic in m ...
used to breed here, but the population died out decades ago.
Observation tower and hotel-restaurant

There is an
observation tower
An observation tower is a tower used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least tall and are made from stone, iron, and woo ...
on the summit of the ''Kahler Asten'' immediately next to the
hotel
A hotel is an establishment that provides paid lodging on a short-term basis. Facilities provided inside a hotel room may range from a modest-quality mattress in a small room to large suites with bigger, higher-quality beds, a dresser, a re ...
-
restaurant
A restaurant is an establishment that prepares and serves food and drinks to customers. Meals are generally served and eaten on the premises, but many restaurants also offer take-out and Delivery (commerce), food delivery services. Restaurants ...
called the ''Astenturm'' (Asten tower). From the platform of the tower, which is , there is a superb all-round view over the Rothaargebirge and other parts of the Sauerland. In very clear weather, even the
Brocken
The Brocken, also sometimes referred to as the Blocksberg, is a mountain near Schierke in the German state of Saxony-Anhalt, between the rivers Weser River, Weser and Elbe. The highest peak in the Harz mountain range, and in Northern Germany, ...
mountain in the
Harz
The Harz (), also called the Harz Mountains, is a highland area in northern Germany. It has the highest elevations for that region, and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name ''Harz'' der ...
(
Saxony-Anhalt
Saxony-Anhalt ( ; ) is a States of Germany, state of Germany, bordering the states of Brandenburg, Saxony, Thuringia and Lower Saxony. It covers an area of
and has a population of 2.17 million inhabitants, making it the List of German states ...
), 163 km away, can be seen without the aid of binoculars.
Plans for a monument on the Kahler Asten go back to the
Vormärz
' (; English: ''pre-March'') was a period in the history of Germany preceding the 1848 March Revolution in the states of the German Confederation. The beginning of the period is less well-defined. Some place the starting point directly after ...
period in the first half of the 19th century. As early as 1843
King Frederick William IV of Prussia visited the Kahler Asten. At the time it was planned to commemorate the 1000th anniversary of the
Treaty of Verdun
The Treaty of Verdun (; ), agreed to on 10 August 843, ended the Carolingian civil war and divided the Carolingian Empire between Lothair I, Louis the German, Louis II and Charles the Bald, Charles II, the surviving sons of the emperor Louis the ...
by building an observation tower as a monument. This treaty sealed the division of the
Carolingian Empire
The Carolingian Empire (800–887) was a Franks, Frankish-dominated empire in Western and Central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as List of Frankish kings, kings of the Franks since ...
into three kingdoms:
West Francia
In medieval historiography, West Francia (Medieval Latin: ) or the Kingdom of the West Franks () constitutes the initial stage of the Kingdom of France and extends from the year 843, from the Treaty of Verdun, to 987, the beginning of the Capet ...
,
East Francia
East Francia (Latin: ) or the Kingdom of the East Franks () was a successor state of Charlemagne's empire created in 843 and ruled by the Carolingian dynasty until 911. It was established through the Treaty of Verdun (843) which divided the for ...
and
Lotharingia
Lotharingia was a historical region and an early medieval polity that existed during the late Carolingian and early Ottonian era, from the middle of the 9th to the middle of the 10th century. It was established in 855 by the Treaty of Prüm, a ...
and was seen as the beginning of the separate development of the French and German nations. During the
1848 year of revolutions the Asten tower was the target of a demonstration for the aims of the March revolution and of German unity.
Plans for a monument were not taken any further, however, until 1881. The foundation stone was laid on 22 June 1884 by the district administrator, Federath, in the presence of numerous honoured guests. In the same year the construction of a tower began. The 25-meter-high skeleton fell victim to an autumn storm, however. Rumours of faulty construction could not be proven in the subsequent legal action. By 1889 the district administrator was able to persuade private donors and the Westphalian provincial association to provide the means to rebuild the tower. It was opened in 1895.
Since 1900 the tower has been an official monument of the
Province of Westphalia
The Province of Westphalia () was a Provinces of Prussia, province of the Kingdom of Prussia and the Free State of Prussia from 1815 to 1946. In turn, Prussia was the largest component state of the German Empire from 1871 to 1918, of the Weimar ...
. Since 1918 the tower has also been a weather station.
[Schluka (2006), p. 57.]
The first renovations were needed in 1923 as a result of weather-induced metal fatigue. At the same time, the restaurant was built. New modification plans were started in 1930 and implemented in 1937. During the
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
the tower was almost completely destroyed by a direct hit from artillery. The repair of war damage was not completed until 1955. In 1967 the damaged slate sheathing had to be replaced by copper. In 1995 an exhibition room was added. In 2004 ownership of the tower passed to Westphalia-Lippe Property Management, a subsidiary of the Westphalia-Lippe Regional Council (''Landschaftsverband Westfalen-Lippe''). A thorough renovation and refurbishment was then carried out by December 2005.
After its
restoration the hotel-restaurant opened its doors again in December 2005 and the Astenturm itself was re-opened on 20 March 2006. It now has a
self-service
Self-service is a system whereby customers acquire (or serve) themselves goods or services, paying for the items at a point-of-sale, as opposed to a shop assistant or clerk acquiring goods or providing services in addition to taking payment. Comm ...
area, a restaurant area and 17 double rooms with 34 beds.
Exhibition on the mountain
Since October 2008 visitors can learn more about the mountain at its summit through an exhibition called the ''Kahler Asten - the roof of Westphalia''. The central themes of the exhibition are the nature reserve with its mountain heath, the weather station and the history of the Asten tower. In addition clips of amateur film from past decades are shown.
Winter sport
The ''Kahler Asten'' and the surrounding area, with its sister mountains, out to about 40 kilometres is one of the most well-known
winter sport regions in the German
Central Uplands
The Central UplandsDickinson (1964), p.18 ff. (N.B. In German die ''Mittelgebirge'' (plural) refers to the Central Uplands; das ''Mittelgebirge'' refers to a low mountain range or upland region (''Mittel'' = "medium" and ''-gebirge'' = "range").) ...
due to its good snow conditions. The Kahler Asten itself is part of the
ski lift
A ski lift is a mechanism for transporting skiers up a hill. Ski lifts are typically a Lift ticket, paid service at ski resorts. The first ski lift was built in 1908 by German Robert Winterhalder in Schollach/Eisenbach, Breisgau-Hochschwarzwald, ...
complex known as the ''
Skiliftkarussell Winterberg''.
See also
*
List of mountains and hills in North Rhine-Westphalia
This list of the mountains and hills in North Rhine-Westphalia shows a selection of high or well-known mountains and hills in the German state of North Rhine-Westphalia (''in order of height'').
Highest points of the North Rhine-Westphalian pro ...
References
Literature
Sluka, Klaudia (2006).''Einfach Spitze''. Westfalen Spiegel, Feb 2006. (pdf, 214 kB)
* Hochsauerlandkreis – Untere Landschaftsbehörde
Landschaftsplan Winterberg Meschede 2008, p. 100
* ''Neueröffnung des Astenturms am 20. März 2006.'' In: ''Sauerland.'' 2/2006 S. 83-85
External links
Report on the Asten tower in the Westfalenspiegel*
{{Authority control
Mountains and hills of North Rhine-Westphalia
Mountains under 1000 metres
Hochsauerlandkreis
Mountains and hills of the Rothaar