The Vilyuy Basin is a large geological area located in eastern Siberia, Russia. It is primarily known for its rich deposits of diamonds, which are mined extensively in the region. The basin is named after the Vilyuy River, which flows through it and contributes to the area's unique ecosystem. The basin is characterized by its diverse landscapes, including forests, rivers, and tundra. It is part of the Yakutia region, which experiences extreme temperatures, with very cold winters and mild summers. The Vilyuy Basin plays a significant role in the local economy, particularly through its diamond mining activities.