Ulakhan-Sis Range
| Ulakhan-Sis Range | |
|---|---|
| Улахан-Сис | |
  Ulakhan-Sis Range Location in Sakha, Russia | |
| Highest point | |
| Peak | Vilka |
| Elevation | 754 m (2,474 ft) |
| Dimensions | |
| Length | 160 km (99 mi) |
| Geography | |
| Country | Russia |
| Federal subject | Sakha Republic |
| Range coordinates | 69°30′N 149°42′E / 69.500°N 149.700°E |
| Parent range | East Siberian System |
| Geology | |
| Age of rock | Devonian |
| Type of rock | Granite, sandstone, effusive rock |
The Ulakhan-Sis Range (Russian: Улахан-Сис; Yakut: Улахан Сис) is a mountain range in the Sakha Republic, Far Eastern Federal District, Russia.[1]
This range is one of the areas of Yakutia where baydzharakhs are found.[2] Kigilyakh rock formations are also found on this range, some of them quite impressive.[3][4]
Geography
The Ulakhan-Sis Range rises in the southeastern limits of the Yana-Indigirka Lowland, northwest and west of the Kolyma Lowland and northeast of the Aby Lowland, along the interfluve of the Erna and Shandrin rivers in the northwest and Khatysty and Arga-Yuryakh in the southeast.[5]
The main ridge stretches in a roughly east/west direction from the western end of the smaller Suor Uyata (Суор-Уята) to the east and the headwaters of the Sundrun River to the Indigirka for about 160 kilometers (99 mi).[5] The highest peak is 754 metres (2,474 ft) high Vilka. To the north rises the Kondakov Plateau, a lower and wider extension of the range. In the west, the Polousny Range, a prolongation of the range on the other side of the Indigirka River, stretches further westwards. To the south, at a certain distance, rises the Alazeya Plateau.[1]
The range has mountains of middle height and smooth slopes with larch forests at the bottom of the valleys.[6]
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References
- ^ a b Улахан-Сис (Ulakhan-Sis) / Great Soviet Encyclopedia; in 35 vols. / Ch. ed. Yu. S. Osipov. 2004—2017.
- ^ Russian Academy of Sciences, Geology Bulletin. (Izvestiya Akademii Nauk. Seriya Geologicheskaya), Issues 1-7. p. 55
- ^ Ykt - Вернулись из Гранитных Городов Улахан Сис
- ^ Кисиляхи
- ^ a b Google Earth
- ^ Indigirka / Great Russian Encyclopedia in 35 vols. / Ch. ed. Yu.S. Osipov . - M, 2004—2017.