Ljubljana Marsh

Since 2008, the major part of the Ljubljana Marsh, covering an area of 135 km2 (52 sq mi), has been protected as a landscape park.

The work was carried out under Mayor Johann Nepomuk Hradeczky (1775–1846) and the provincial governor, Baron Joseph Camillo von Schmidburg (1779–1846).

Emperor Francis I of Austria and Empress Caroline Augusta of Bavaria inspected the road in 1830, and a monument was erected to the achievement in 1833.

Volar lies between the Iščica and Ljubljanica rivers and was settled after 1830, when it was also officially designated Karolinska zemlja (German: Karolinengrund), literally 'Caroline's land', in honor of Caroline Augusta of Bavaria.

Havptmance (also spelled Haupt- and -man(i)ca or -manice) was already mentioned as a place in the 18th century and was settled in the 1870s, when peat extraction was a major economic activity.