ome distance
which flowed towards the south, and wag called by the natives Tacoutche
Tesse, and which he erroneously supposed to be the Columbia. It was
afterwards ascertained that it emptied itself in lat. 49 degrees,
whereas the mouth of the Columbia is about three degrees further south.
When Mackenzie some years subsequently published an account of his
expeditions, he suggested the policy of opening an intercourse between
the Atlantic and Pacific oceans, and forming regular establishments
through the interior and at both extremes, as well as along the coasts
and islands. By this means, he observed, the entire command of the fur
trade of North America might be obtained from lat. 48 north to the pole,
excepting that portion held by the Russians, for as to the American
adventurers who had hitherto enjoyed the traffic along the northwest
coast, they would instantly disappear, he added, before a well regulated
trade.
A scheme of this kind, however, was too vast and hazardous for
individual enterprise; it could only be undertaken by a company under
the sanction and protection of a government; and as there might be a
clashing of claims between the Hudson's Bay and Northwest Company, the
one holding by right of charter, the other by right of possession,
he proposed that the two comparties should coalesce in this great
undertaking. The long-cherished jealousies of these two companies,
however, were too deep and strong to allow them to listen to such
counsel.
In the meantime the attention of the American government was attracted
to the subject, and the memorable expedition under Messrs. Lewis and
Clarke fitted out. These gentlemen, in 1804, accomplished the enterprise
which had been projected by Carver and Whitworth in 1774. They
ascended the Missouri, passed through the stupendous gates of the Rocky
Mountains, hitherto unknown to white men; discovered and explored the
upper waters of the Columbia, and followed that river down to its
mouth, where their countryman, Gray, had anchored about twelve years
previously. Here they passed the winter, and returned across the
mountains in the following spring. The reports published by them of
their expedition demonstrated the practicability of establishing a line
of communication across the continent, from the Atlantic to the Pacific
Ocean.
It was then that the idea presented itself to the mind of Mr. Astor, of
grasping with his individual hand this great enterprise, which for y
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