Mackenzie in vain endeavoured to procure a guide across the mountains; the natives refused to accompany him. On the 12th of September the party arrived in safety at Fort Chippewyan, having been absent one hundred and two days.

Taken in connection with Hearne's journey, this expedition was of great importance as establishing the fact of an Arctic sea of wide extent to the north of the continent. It seemed probable, also, that this sea formed its continuous boundary.

But the greater expedition of this intrepid fur-trader was yet to be undertaken. His object this time was to ascend the Peace River, which rises in the Rocky Mountains, and crossing these to penetrate to that unknown stream which he had sought in vain during his former journey. This river, he conjectured, must communicate with the ocean; and finding it, he must be borne along to the Pacific.

Mackenzie sets out for the Pacific.

The explorer set out, accordingly, from Fort Chippewyan on the 10th of October, 1792, pushing on to the remotest trading post, where he spent the winter in a traffic for furs with the Beaver and Rocky Indians. When he had despatched six canoes to Chippewyan with the cargo he had collected, he engaged hunters and interpreters, built a huge canoe and set out for the Pacific. This canoe, it may be mentioned, was twenty-five feet long within, exclusive of the curves of stem and stern, twenty-six inches hold and four feet nine inches beam. At the same time it was so light that two men could carry it three or four miles, if necessity arose, without stopping to rest. In such a slender craft they not only stowed away their provisions, presents, arms, ammunition and baggage to the weight of three thousand pounds, but found room for Mackenzie, seven white companions and two Indians. Up to the 21st of May the party encountered a series of such difficulties and hardships that all save the leader himself were disheartened at the prospect. The river being broken by frequent cascades and dangerous rapids, it was very often necessary to carry the canoe and baggage until the voyage could be resumed in safety; and on their nearer approach to the Rocky Mountains the stream, hemmed in between stupendous rocks, presented a continuance of fearful torrents and huge cataracts. The party began to murmur audibly; and, at last, progress came to a standstill. In truth, there was some reason for this irresolution; further progress by water was impossible and they could only advance over a mountain whose sides were broken by sharp, jagged rocks and thickly covered with wood. Mackenzie despatched a reconnoitring party, with orders to ascend the mountain and proceed in a straight course from its summit, keeping the line of the river until they could ascertain if it was practicable to resume navigation.

While this party was gone on its quest, the canoe was repaired, and Mackenzie busied himself in taking an altitude which showed the latitude to be 56° 8'. By sunset the scouts had severally returned, each having taken different routes. They had penetrated through thick woods, ascended hills and dived into valleys, passed the rapids, and agreed, that though the difficulties by land were appalling, this was the only practicable course. Unattractive as was the prospect, the spirits of the party rose as night closed in. Their troubles were forgotten in a repast of wild rice sweetened with sugar; the usual evening regale of rum renewed their courage, and followed by a night's rest, they entered upon the journey next day with cheerfulness and vigour.

It is not to the purpose here to relate all that befell Mackenzie on this memorable voyage, but, after many vicissitudes, towards the close of June he reached the spot where the party were to strike off across the country.

Journey in the mountain.

"We carried on our back," says Mackenzie, "four bags and a half of pemmican, weighing from eighty-five to ninety-five pounds each, a case with the instruments, a parcel of goods for presents weighing ninety pounds, and a parcel containing ammunition of the same weight; each of the Canadians had a burden of about ninety pounds, with a gun and ammunition, whilst the Indians had about forty-five pounds weight of pemmican, besides their gun—an obligation with which, owing to their having been treated with too much indulgence, they expressed themselves much dissatisfied. My own load, and that of Mr. Mackay, consisted of twenty-two pounds of pemmican, some rice, sugar, and other small articles, amounting to about seventy pounds, besides our arms and ammunition. The tube of my telescope was also slung across my shoulder, and owing to the low state of our provisions, it was determined that we should content ourselves with two meals a day."

About the middle of July Mackenzie encountered a chief who had, ten years before, in a voyage by sea, met with two large vessels full of white men, the first he had ever seen and by whom he was kindly received. The explorer very plausibly conjectured that these were the ships of Captain Cook. Thus the names of two of the world's great explorers were, by that episode, conjoined.