Several species of monkeys inhabit the forests from the Parana, to the Bolivian frontier.
The trade of the city is principally in Bolivian products - mineral ores, alpaca wool, &c. - but it also receives and exports the products of the neighbouring Peruvian provinces, and the output of the borax deposits in the neighbourhood.
This railway gives Cuzco an outlet to the coast, and also direct connexion with La Paz, the Bolivian capital.
Hayes in 1878, forms the boundary between Argentina and Paraguay from the Paraguay river north-west to the Bolivian frontier.
The guanaco (Auchenia), which ranges from Tierra del Fuego to the Bolivian highlands, finds comparative safety in these uninhabitable solitudes, and is still numerous.