Sig

Lake Sig is a protected water body in Tver Oblast, Russia, designated to preserve its natural state and ecosystems. The lake maintains its ecological value through restricted access and regulated environmental management practices.

The lake received its protected designation in the 1990s as Russia developed its system for preserving sensitive natural zones. This legal recognition ensured its conservation status for future generations.

Lake Sig represents part of Russia's system of protected natural territories, known in Russian as Особо охраняемые природные территории.

As a protected zone, the lake has specific access restrictions and visitor regulations in place. It is wise to check with local authorities about what activities are permitted before planning a visit.

The name of the lake appears differently across languages: Сиг in Russian, Ozero Sig in Cebuano, and 西格湖 in Chinese.

Location: Tver Oblast

GPS coordinates: 57.04667,33.13361

Latest update: December 13, 2025 11:42