Visited:30. 9. 2021
History:Mravenčák is a neovolcanic hill and a natural monument in the northern part of the Doupovské hory. It is located on the right bank of the Ohře River south of Klášterec nad Ohří in the Chomutov district. The hill is also referred to in historical sources as Hackelberg, Häckelberg, Hekberg, Kegelberg or Mravenečník. The hill used to be deforested and exploited in the past. The remains of meadows and old fruit trees in the forest are evidence of human activity. A protected area on the top of the hill was declared on 22 November 1990 by the District National Committee in Chomutov with the registration number 1507, with a total area of 0.77 ha. The object of protection is a rocky peak with a perpendicular wall with thermophilic steppe flora. The most botanically valuable part of the natural monument is the rock bar on the south-western slope, where the Czech meadow coneflower (Pulsatilla pratensis subsp. bohemica) grows. In the mixed forest, a highly endangered plant is the Arabis pauciflora and a small population of Geranium divaricatum in the light oak forest in the eastern part of the protected area. Also valuable is the mixed forest with a scrub edge, which is close to natural forest in the conservation area. However, the forest outside the protected area is dominated by larch (Larix decidua) and spruce (Picea abies). Due to the inaccessible terrain, the forest in the nature reserve performs a protective function on steep slopes and is not used for economic purposes. Other important plant species on the site include the lily-of-the-valley (Anthericum liliago), the rock tare (Aurinia saxatilis) and the Ivan's cavil (Stipa joannis).
Source:https://cs.wikipedia.org/wiki/Mraven%C4%8D%C3%A1k
Impressions:An interesting natural landmark that I unfortunately didn't get to see.
