Elburz Mountains, also spelled Alborz, Albourz, Alburz, or Elburs, Persian Reshteh-ye Kūhhā-ye Alborz, major mountain range in northern Iran, 560 miles (900 km) long. The range, most broadly defined, extends in an arc eastward from the frontier with Azerbaijan southwest of the Caspian Sea to the Khorāsān region of northeastern Iran, southeast of the Caspian Sea, where the range merges into the Ālādāgh, the more southerly of the two principal ranges there. More commonly, however, the westernmost part of the range is called the Talish (Talysh, Talesh, or Tavālesh) Range, or the Bogrov Dāgh. The Elburz Range, in its strictest sense, forms part of the central stretch of the chain, which also includes Iran’s two highest peaks, Mount Damāvand and Mount Alām. The Elburz mountain system traverses virtually all of the northernmost portions of Iran from east to west.
