Across the Amur river in China, it is 140 times as much.

ECONOMIST: Russia does not exactly soar in its Asian backyard

All that remains unresolved is a small stretch along the Amur River near the Russian city of Khabarovsk, where three small river islands, no more than 12 sq km in total, are not yet covered by treaty.

CNN: ALLIANCES

The survivors floated down the Amur, wintered at the river's mouth and in the spring turned north into the Sea of Okhotsk.

ECONOMIST: The Amur River