'7 of this river's more than 1,000 known tributaries exceed 1,000 miles in length'
Amazon
SOUTH AMERICA: 7 of this rivers more than 1,000 known tributaries exceed 1,000 miles in length
7 of this river's more than 1,000 known tributaries exceed 1,000 miles in length
7 of this river's more than 1,000 known tributaries exceed 1,000 miles in length
SOUTH AMERICA
Amazon
SOUTH AMERICA