Lake Saint Anne (in Hungarian Szent-Anna to) is a volcanic lake, the only such lake throughout Romania. It is situated in Harghita County, in Mountain Ciomatu, from left Olt near Tusnad. The lake is located on the bottom of the crater of an extinct volcano called Ciomatu (or, according to other sources, Ciomadu) Puciosu volcanic massif, where the most recent volcanic eruption in the Carpathians and Eastern Europe, which took place a few tens of thousands years. Lake supplement their water from rainfall only, with no springs.
Mohos Marsh is a nature reserve, representing the place of residence of many unique species of plants. Mohos the old lake disappeared, nemairamanand than a swamp and abundant vegetation comprised tail Matthew-of-mind. The disappearance of the lake is due regressive erosion of Lake Veres, pouring it in Olt, as well as filling the earth.
(Translated with Google Translate)
