The Hackenberg is a hill in the suburb of Sievering

Sievering

Sievering is a suburb of Vienna and part of Döbling, the 19th district of Vienna. Sievering was created in 1892 out of the two erstwhile independent suburbs Untersievering and Obersievering. These still exist as Katastralgemeinden.- Geography :...

 in the 19th district of Vienna

Vienna

Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

, Döbling

Döbling

Döbling is the 19th District in the city of Vienna, Austria . It is located on the north end from the central districts, north of the districts Alsergrund and Währing...

. It is 306 metres tall.

Hackenberg is covered in sand

Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal...

 and gravel

Gravel

Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel can be sub-categorized into granule and cobble...

. The Arbesbach

Arbesbach

Arbesbach is an Austrian municipality in the district of Zwettl, in Lower Austria, Austria....

 flows around the hill’s north-eastern flank, while the Krottenbach flows around its south-western flank, although both rivers have been enclosed in canals in this area. The hill extends as far as the Krim (an area in Unterdöbling

Unterdöbling

Unterdöbling was an independent municipality until 1892 and is today a part of Döbling, the 19th district of Vienna. It is also one of the 89 Katastralgemeinden.- Geography :...

) in the west.

The Hackenberg is first mentioned in a contract of purchase drawn up for Rudolph I of Bohemia

Rudolph I of Bohemia

Rudolf I of Habsburg was Duke of Austria and Styria from 1298 and King of Bohemia and titular King of Poland from 1306 until his death...

, which refers to it as “hakkenperge”. The name derives from the old field measurement Haken; older theories that Hackenberg derives from the personal name Hacko have since been disproved.

In the Middle Ages, the village of Chlaintzing stood on the south-western slope of the Hackenberg. It was surrounded by vineyards but was later abandoned. Today, the Hackenberg is covered with small settlements, but a few vineyards have also survived.

Just below the peak of the Hackenberg, on the side facing the Krottenbachstraße, is a fresh water catchment for the city of Vienna. The Sieveringer Friedhof (cemetery) was established on the southwestern side of the hill in 1883.