The Pešter plateau is a karst plateau in southwestern Serbia, in the Raška (or Sandžak) region. It lies at the altitude of 1150–1492 m, (Kuljarski vrh) at 1492 meters. The territory of the plateau is mostly located in the municipality of Sjenica, with parts belonging to Novi Pazar and Tutin. The name of the region comes from the word pešter, which is a slavic word for cave.
text taken from Wikipedia