Zetea is the only artificial lake in the upper Great Tarnava. Construction of the dam began in 1976, ending only in 1992.
Harghita Madaras is one of the most spectacular ski resorts in Transylvania. Harghita Mountain is the longest and the youngest of the chain neoeruptiv Eastern Carpathians, the highest peak being Madaras Peak (1801 m). The core, so-called Central Harghita Szekler separate, ie Ciuc seat and seat Odorhei. Their peak is Mount Harghita Madaras, called "Székely holy mountain"
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