Seliger - the system of lakes of glacial origin in the Tver and Novgorod oblasts of the Russian Federation. Another name - "Ostashkovskoe", under the name of the item on the lake shore town Ostashkov. Lake area of 260 km ², including about 38 km ² falls on the island (they are on Seliger 160).
The largest island is Khachin.
The area of the basin - 2275 km ².
Seliger takes 110 tributaries (the largest - river Krapivenka, Soroga and Seremuha), as it implies only one river Selizharovka. The lake lies at an altitude of 205 meters above sea level, glacial origin. This explains its original form - it's not like a lake in a familiar concept, but rather a chain of lakes stretching from north to south for 100 km and linked by short narrow channels. The coastline stretching over 500 km of rugged different - wooded headlands, deep devote into the land with picturesque bays, islands of various shapes.
On the lake Seliger there are 24 reaches, the largest - Polnovsky, Ostashkov, Kravotynsky, Selizharovsky, Trinity, Sosnitsky, Nizhnekotitsky and Berezovsky. Portions of the lake are distinct names: Vyastso, Velichko, Seremo, Glubokoe, Dlinnoe, Svyatoe, Svatitsa and others.
Seliger is a large system of lakes linked by effluents, has many small islands and is surrounded by forests, including pine woods with many berries and mushrooms.
Seliger is situated within a picturesque landscape of forests and hills. The lake is a protected nature reserve and is sometimes known as the "European Baikal" due to the diversity of its unique flora and fauna, similar to Lake Baikal.
Ostashkov is the only town on the lake and is one of the most popular resorts in central Russia.