Upper Ob

The Ob crosses the West Siberian Plain in a broad, winding course, gathering the waters of tributaries such as the Vasyugan and the Vakh. Between these rivers its valley forms a landscape of forest, wetlands and channels. The Ob rises from the meeting of the Biya and Katun in the Altai and flows north towards the Arctic. Its long spring floods spread over the low floodplain, creating a changing network of water and islands.