Lake Chyortovo (Lozil-To)
Чёртово озеро / Лозыль-то
Chyortovo lake (Lozil-To) ONC map section.
Lake Chyortovo (Lozil-To) Location in the Yamalo-Nenets Autonomous Okrug, Russia
Location	Krasnoselkupsky District
Coordinates	64°07′N 80°42′E / 64.117°N 80.700°E / 64.117; 80.700
Lake type	Chain of lakes
Primary inflows	Pokotylky, Marylky, Motylky, Orylky, Kanylky, Kytylky, Sipalky, Tochipylky, Chebakky
Primary outflows	Tolka
Basin countries	Russia
Surface area	111 square kilometres (43 sq mi)

Lake Chyortovo or Lozil-To, also known as "Chertovo" (Russian: Чёртово озеро, meaning "Devil's Lake" ; Selkup: Лозыль'-то) is a freshwater lake in Yamalo-Nenets Autonomous Okrug, Russia.^[1][2]

The lake is a traditional sacred site for the indigenous Selkup people of the region. Legend says the lake is so deep it has no bottom.^[3][4][5][6]

Geography

Chyortovo is located north of the Arctic circle, in the southeastern part of the okrug. It is a chain of lakes roughly aligned from west to east. They are connected with each other by streams. The westernmost one at 64°12′N 79°55′W / 64.200°N 79.917°W / 64.200; -79.917 is known as "Upper Chyortovo". It has an hourglass shape and an island in the northern part. The largest lake is at the eastern end. The lakes' outflow is the Tolka, a left tributary of the Taz, which flows very close to the east.^[2][1]

A number of rivers flow into the lake, such as the 106 kilometres (66 mi) long Pokotylky, the 30 kilometres (19 mi) long Motylky, the 27 kilometres (17 mi) long Orylky, the 91 kilometres (57 mi) long Marylky, the 42 kilometres (26 mi) long Kytylky, the 131 kilometres (81 mi) long Kanylky, the 11 kilometres (6.8 mi) long Sipalky, the 36 kilometres (22 mi) long Chebakky and the 34 kilometres (21 mi) long Tochipylky, among others.^[1][7]

Fauna

Among the fish species found in the lake, the tugun (Coregonus tugun) is much appreciated.^[8]