' is a rather large

lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

Ilomantsi Ilomantsi (, ) is municipality and a village of Finland. It is located in the North Karelia region. The municipality has a population of () and covers an area of of which is water. The population density is . The easternmost point of Finland ...

North Karelia North Karelia (or ''Northern Karelia'', ; ) is a region in eastern Finland. It borders the regions of Kainuu, North Savo, South Savo and South Karelia, as well as Russia's Republic of Karelia. It is the easternmost region of Finland and share ...

, Finland. The lake, which sports 451 islands and many

beach A beach is a landform alongside a body of water which consists of loose particles. The particles composing a beach are typically made from Rock (geology), rock, such as sand, gravel, shingle beach, shingle, pebbles, etc., or biological s ...

es, is located in the middle of

wilderness Wilderness or wildlands (usually in the plurale tantum, plural) are Earth, Earth's natural environments that have not been significantly modified by human impact on the environment, human activity, or any urbanization, nonurbanized land not u ...

. The river

Koitajoki Koitajoki (or the ''Koita River'') () is a river in Eastern Finland and partly in Russia in Northern Europe. Having its origin near the international boundary in Ilomantsi of Northern Karelia, Finland, the Koitajoki River enters the Republic of Ka ...

, which is a tributary of the river Pielisjoki in North Karelia, flows from the lake. Koitere Lacus, one of the apparent

methane Methane ( , ) is a chemical compound with the chemical formula (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The abundance of methane on Earth makes ...

lakes on

Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim ...

's moon

Titan Titan most often refers to: * Titan (moon), the largest moon of Saturn * Titans, a race of deities in Greek mythology Titan or Titans may also refer to: Arts and entertainment Fictional entities Fictional locations * Titan in fiction, fictiona ...

is named after this lake. That ''lake'' is located 79.4 N and 36.14° W on

's globe and is presumed to be composed of

liquid Liquid is a state of matter with a definite volume but no fixed shape. Liquids adapt to the shape of their container and are nearly incompressible, maintaining their volume even under pressure. The density of a liquid is usually close to th ...

and

ethane Ethane ( , ) is a naturally occurring Organic compound, organic chemical compound with chemical formula . At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is List of purification methods ...

References

LKoitere Landforms of North Karelia Lakes of Ilomantsi {{EasternFinland-geo-stub