If any portion of the waters of the Amazon runs round the southern side of the large island of Marajo into the river Para, it is only through tortuous, natural canals, which are in no sense outflow channels of the Amazon.
Barak) de Marajo gives it 600 m.
It also includes the ocean frontage of Marajo, an island about the size of the kingdom of Denmark lying in the mouth of the Amazon.
In 1612 the French attempted to found a permanent colony in the island of Marajo, where they succeeded in maintaining themselves till 1618.
Cattle-raising was once a flourishing industry on the island of Marajo, at the mouth of the Amazon, and it is followed to some extent at Alemquer and other points along the Amazon, but the cattle are small, and commonly in bad condition.