GeographyWith a land area of situated east of Upper Austria, Lower Austria is the country's largest state. Lower Austria derives its name from its downriver location on the Enns River which flows from the west to the east. Lower Austria has an international border, long, with the Czech Republic (South Bohemian Region, South Bohemia and South Moravia Region, South Moravia Regions) and Slovakia (Bratislava Region, Bratislava and Trnava Regions). The state has the second longest external border of all Austrian states. It also borders the other Austrian states of Upper Austria, Styria and Burgenland as well as surrounding Vienna. Lower Austria is divided into four regions, known as ''Viertel'' (quarters): * ''Weinviertel'' or Tertiary Lowland (below the Manhartsberg) * ''Waldviertel'' or Bohemian Plateau (above the Manhartsberg) * ''Mostviertel'' (above the Vienna Woods) * ''Industrieviertel'' (below the Vienna Woods). These regions have different geographical structures. Whilst the ''Mostviertel'' is dominated by the foothills of the Limestone Alps with mountains up to high, most of the ''Waldviertel'' is a granite plateau. The hilly ''Weinviertel'' lies to the northeast, descends to the plains of Marchfeld in the east of the state, and is separated by the Danube from the Vienna Basin to the south, which in turn is separated from the Vienna Woods by a line of thermal springs (the ''Thermenlinie'') running north to south.
Mountains* Schneeberg (Lower Austria), Schneeberg (Klosterwappen; 2,076 m) * Rax (Scheibwaldhöhe; 1,943 m; highest summit: Heukuppe; 2,007 m – Styria) * Ötscher (1,893 m) * Dürrenstein (Austria), Dürrenstein (1,878 m) * Schneealpe (Ameisbühel; 1,828 m; highest summit: Windberg; 1,903 m – Styria) * Hochkar (1,808 m) * Gamsstein (1,774 m) * Stumpfmauer (1,770 m) * Göller (1,766 m) * Hochwechsel (1,743 m) * Gippel (1,669 m) * Großer Sonnleitstein (1,639 m) * Großer Zellerhut (1,639 m) * Gemeindealpe (1,626 m) * Scheiblingstein (1,622 m) (not to be confused with Scheiblingstein (2,197 m), which is in Styria) * Drahtekogel (1,565 m) * Sonnwendstein (1,523 m) * Obersberg (1,467 m) * Königsberg (Göstlingen Alps), Königsberg (1,452 m) * Großer Sulzberg (1,400 m) * Reisalpe (1,399 m) * Gahns (1,380 m) * Tirolerkogel (1,377 m) * Türnitzer Höger (1,372 m) * Unterberg (Lower Austria), Unterberg (1,342 m) * Traisenberg (1,230 m) * Dürre Wand (1,222 m) * Hohenstein (1,195 m) * Eisenstein (mountain), Eisenstein (1,185 m) * Hohe Wand (mountain), Hohe Wand (1,132 m) * Großer Peilstein (1,061 m) * Weinsberg (mountain), Weinsberg (1,041 m) * Hocheck (Lower Austria), Hocheck (1,036 m) * Nebelstein (1,017 m) * Eibl (Berg), Eibl (1,007 m) * Hohe Mandling (967 m) * Jauerling (961 m) * Hoher Lindkogel also named Eisernes Tor (834m) * Anninger (675 m) * Buschberg (491 m) Other mountains in Lower Austria may be found at :Mountains of Lower Austria.
Alpine passes* Semmering Pass, Semmering (985 m) * Wechsel Pass, Wechsel (980 m) The state border with Styria runs over both passes.
RiversAlmost all of Lower Austria is drained by the Danube. The only river that flows into the North Sea (via the Moldau (river), Moldau and the Elbe) is the Lainsitz in northern ''Waldviertel'', the Erlauf (river), Erlauf river. The most important rivers north of the Danube (on its left bank) are the Ysper, Kamp (river), Kamp, Krems (Lower Austria), Krems, Lainsitz, March (river), March and Thaya. South of the Danube (on its right bank) are the Enns (river), Enns, Ybbs, Erlauf (river), Erlauf, Melk (river), Melk, Pielach, Traisen (river), Traisen, Schwechat (river), Schwechat, Fischa, Schwarza (Leitha), Schwarza, Triesting, Pitten (river), Pitten and the Leitha.
Lakes* Ottenstein Reservoir (4.3 km) * Lunzer See (0.69 km) * Erlaufsee (0.56 km, of which about half lies in Lower Austria) * Erlauf Reservoir * Wienerwaldsee (0.32 km)
CavesLower Austria is rich in natural caves; in all 4,082 have been recorded. Most of the caves have formed in limestone and dolomite rocks and are therefore called Solutional cave, karst caves. Cavities also form in the marble of the Central Alps and the Bohemian Massif. Among the largest caves in Lower Austria are: * Ötscherhöhlensystem (Ötscher): 27,003 m long; union of the Taubenloch and Geldloch (Ötscher), Geldloch * Pfannloch (Ötscher): 5,287 m long * Lechnerweidhöhle (Dürrenstein (Österreich), Dürrenstein): 5,252 m long * Trockenes Loch (Schwarzenbach an der Pielach): 4,510 m long * Hermannshöhle (Niederösterreich), Hermannshöhle (Kirchberg am Wechsel): 4,430 m long * Eisensteinhöhle (Bad Fischau): 2,341 m long The last two are open as show caves, along with the Allander stalactite cave, the Unicorn Cave (Austria), Unicorn Cave, the Hochkarschacht, the Nixhöhle and the Ötschertropfsteinhöhle.
HistoryThe history of Lower Austria is very similar to the history of Austria. Many castles are located in Lower Austria. Klosterneuburg Abbey, located here, is one of the oldest abbeys in Austria. Before World War II, Lower Austria had the largest number of Jews in the country. The names ''Lower Austria'' and ''Upper Austria'' are derived from the earlier names ''Austria below the Enns'' and ''Austria above the Enns'', references to the Enns (river), river Enns. Going down from its source on the northern edge of the Central Eastern Alps, the river crosses Upper Austria, then on its lower reaches forms the boundary between Upper Austria and Lower Austria.
EconomyThe gross domestic product (GDP) of the state was 61.0 billion € in 2018, accounting for 15.8% of Austria's economic output. GDP per capita adjusted for purchasing power was 32,300 €, or 107% of the EU27 average in the same year. Lower Austria is the state with the second-lowest GDP per capita in Austria.
Administrative divisionsLower Austria is divided into four regions: ''Waldviertel'', ''Mostviertel'', ''Industrieviertel'', and ''Weinviertel''. The Wachau valley, situated between Melk and Krems an der Donau, Krems in the Mostviertel region, is famous for its landscape, culture, and wine. Administratively, the state is divided into 20 districts (''Bezirke''), and four independent towns (''Statutarstadt, Statutarstädte''). In total, there are 573 municipalities within Lower Austria.
Independent towns* Krems an der Donau * * Waidhofen an der Ybbs * Wiener Neustadt
Districts* Amstetten (district), Amstetten * Baden (district of Austria), Baden * Bruck an der Leitha (district), Bruck an der Leitha * Gänserndorf (district), Gänserndorf * Gmünd (district), Gmünd * Hollabrunn (district), Hollabrunn * Horn (district), Horn * Korneuburg (district), Korneuburg * Krems-Land * Lilienfeld (district), Lilienfeld * Melk (district), Melk * Mistelbach (district), Mistelbach * Mödling (district), Mödling * Neunkirchen (Austrian district), Neunkirchen * Sankt Pölten-Land * Scheibbs (district), Scheibbs * Tulln (district), Tulln an der Donau * Waidhofen an der Thaya (district), Waidhofen an der Thaya * Wiener Neustadt-Land * Zwettl (district), Zwettl