Spring came and found Mackenzie ready to go forward into the unknown regions of the west, regions as yet untrodden by the feet of white men. Alexander Mackay, one of the most resolute and capable traders in the service of the North-West Company, was to be his companion on the journey; and with them were to go six picked French-Canadian voyageurs and two Indians as guides. They had built a birch-bark canoe of exceptional strength and lightness. It was twenty-five feet long, some four feet in beam, twenty-six inches deep, and had a carrying capacity of three thousand pounds. Explorers and {74} men stepped into their light craft on the evening of May 9, 1793. The fort fired guns and waved farewell; the paddlers struck up a voyageurs' song; and the blades dipped in rhythmic time. Mackenzie waved his hat back to the group in front of the fort gate; and then with set face headed his canoe westward for the Pacific. Recall what was happening now out on the Pacific! Robert Gray was heading home to Boston with news of the discovery of the great river. Vancouver was back from San Francisco carefully charting the inner channel of the coast. Baranoff, the little czar of the Russian traders, was coasting at the head of fifteen hundred 'bidarkies' between the Aleutians and Sitka; and Spain was still sending out ragged pilots to chart the seas which she had not the marine to hold. The big canoe went on, up the Peace river. Spring thaw brought the waters down from the mountains in turbulent floods, and the precipices narrowed on each side till the current became a foaming cascade. It was one thing to float down-stream with brigades of singing voyageurs and cargoes of furs in spring; it was a different matter to breast the full force of these torrents with only ten men {75} to paddle. In the big brigades the men paddled in relays. In this canoe each man was expected to pole and paddle continuously and fiercely against a current that was like a mill-race. Mackenzie listened to the grumblers over the night camp-fire, and explained how much safer it was to ascend an unknown stream with bad rapids than to run down it. The danger could always be seen before running into it. He cheered the drooping spirits of his band, and inspired them with some of his own indomitable courage.