The Leitha Mountains are a range

Mountain range

A mountain range is a single, large mass consisting of a succession of mountains or narrowly spaced mountain ridges, with or without peaks, closely related in position, direction, formation, and age; a component part of a mountain system or of a mountain chain...

 of low mountains in Austria

Austria

Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

 lying on the boundary between Lower Austria

Lower Austria

Lower Austria is the northeasternmost state of the nine states in Austria. The capital of Lower Austria since 1986 is Sankt Pölten, the most recently designated capital town in Austria. The capital of Lower Austria had formerly been Vienna, even though Vienna is not officially part of Lower Austria...

 and Burgenland

Burgenland

Burgenland is the easternmost and least populous state or Land of Austria. It consists of two Statutarstädte and seven districts with in total 171 municipalities. It is 166 km long from north to south but much narrower from west to east...

.

The range is an offshoot of the Alps

Alps

The Alps is one of the great mountain range systems of Europe, stretching from Austria and Slovenia in the east through Italy, Switzerland, Liechtenstein and Germany to France in the west....

 and forms a connection to the Carpathians to the north. It is a ridge about 35 km long and 5-7 km wide along the southeastern edge of the Vienna Basin

Vienna Basin

The Vienna Basin is a sedimentary basin between the Alps and the Carpathian Mountains...

 from Brucker Pforte in the northeast to Wiener Neustädter Pforte (Ödenburger Pforte) in the southwest. The range lies to the southeast of the Leitha River and is considered part of the Randgebirge östlich der Mur division of the Eastern Alps

Eastern Alps

Eastern Alps is the name given to the eastern half of the Alps, usually defined as the area east of the Splügen Pass in eastern Switzerland. North of the Splügen Pass, the Posterior Rhine forms the border, and south of the pass, the Liro river and Lake Como form the boundary line.-Geography:The...

. The highest peak, Sonnenberg (Hungarian: Nap-hegy), is 484 m above sea level.

The ridge is heavily forested with deciduous trees such as oak

Oak

An oak is a tree or shrub in the genus Quercus , of which about 600 species exist. "Oak" may also appear in the names of species in related genera, notably Lithocarpus...

, hornbeam

Hornbeam

Hornbeams are relatively small hardwood trees in the genus Carpinus . Though some botanists grouped them with the hazels and hop-hornbeams in a segregate family, Corylaceae, modern botanists place the hornbeams in the birch subfamily Coryloideae...

, and beech

Beech

Beech is a genus of ten species of deciduous trees in the family Fagaceae, native to temperate Europe, Asia and North America.-Habit:...

predominating.