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High Moors represent the last stage of moor formation in areas with a large amount of precipitation and are characterised by water with a low calcium content. Predominant vegetation: peat mosses, cotton grass, heather. Their location is limited to a few areas at a certain altitude in the Alps and the Waldviertel Mühlviertel regions. Alpine high moors still show an accentuated relief. The high moors of the Bohemian Massif (Waldviertel, Mühlviertel) formed in depressions on water-impermeable crystalline rocks. Most of them have, however, been destroyed by drainage and peat cutting. High moors are still fairly abundant in the province of Salzburg.