racocha, the distances for the Lower
Amazon are taken from the best Brazilian authorities that could be
consulted; the distances for the Upper Amazon, from the Brazilian
frontier to the head of steamer navigation at Borja, were measured by
the Peruvian Hydrographical Commission of the Amazon; and the
distance from Borja, the head of navigation, to the source of the
river in Lake Laracocha, is given as estimated by the best Peruvian
authorities.

LIST OF DISTANCES ON THE AMAZON.

Lower
Amazon.
Miles.
Atlantic ocean to Para 75
Para to Breves 146
Breves to Garupa 123
Garupa to Porto de Moz 48
Porto de Moz to Prainha 96
Prainha to Monte Alegre 44
Monte Alegre to Santarem 60
Santarem to Obidos 68
Obidos to Villa Bella 95
Villa Bella to Serpa 137
Serpa to Manaos 110
From the Atlantic to Manaos, 1002 miles.
Manaos to Cudajos 155
Cudajos to Coary 84
Coary to Tefe (Ega) 107
Tefe (Ega) to Fonte Boa 133
Fonte Boa to Tonantius 140
Tonantius to San Paulo 95
San Paulo, mouth of the Yavari river 90
The mouth of the Yavari marks the boundary line
between Peru and Brazil on the south side of the
Amazon.
Mouth of the Yavari to Tabatinga 14
Brazilian frontier port on the north side of the
Amazon. From the Atlantic to Tabatinga,
1825 miles.
Tabatinga to Letitia 3
Peruvian frontier post.

Upper
Amazon.
Miles.
Letitia to Loreto 37
Loreto to Pe