Far north of the Missouri beyond the borderlands flows the Saskatchewan. As far north again, beyond the Saskatchewan, flows another great river, the Athabasca, into Athabasca Lake, on whose blue shores to the north lies a little white-washed fort of some twenty log houses, large barn-like stores, a Catholic chapel, an Episcopal mission, and a biggish residence of pretence for the chief trader. This is Fort Chipewyan. At certain seasons Indian tepees dot the surrounding plains; and bronze-faced savages, clad in the ill-fitting garments of white people, shamble about the stores, or sit haunched round the shady sides of the log houses, smoking long-stemmed pipes. These are the Chipewyans come in from their hunting-grounds; but for the most part the fort seems chiefly populated by regiments of husky dogs, shaggy-coated, with the sharp nose of the fox, which spend the long winters in harness coasting the white wilderness, and pass the summers basking lazily all day long except when the bell rings for fish time, when half a hundred huskies scramble wildly for the first meat thrown.

A century ago Chipewyan was much the same as to-day, except that it lay on the south side of the lake. Mails came only once in two years instead of monthly, and rival traders were engaged in the merry game of slitting each other's throats. All together, it wasn't exactly the place for ambition to dream; but ambition was there in the person of Alexander Mackenzie, the young fur trader, dreaming what he hardly dared hope. Business men fight shy of dreamers; so Mackenzie told his dreams to no one but his cousin Roderick, whom he pledged to secrecy. For fifty years the British government had offered a reward of 20,000 pounds to any one who should discover a Northwest Passage between the Atlantic and the Pacific. The hope of such a passageway had led many navigators on bootless voyages; and here was Mackenzie with the same bee in his bonnet. To the north of Chipewyan he saw a mighty river, more than a mile wide in places, walled in by great ramparts, and flowing to unknown seas. To the west he saw another river rolling through the far mountains. Where did this river come from, and where did both rivers go? Mackenzie was not the man to leave vital questions unanswered. He determined to find out; but difficulties lay in the way. He couldn't leave the Athabascan posts. That was overcome by getting his cousin Roderick to take charge. The Northwest Fur Company, which had succeeded the French fur traders of Quebec and Montreal when Canada passed from the hands of the French to the English, wouldn't assume any cost or risk for exploring unknown seas. This was more niggardly than the Hudson's Bay Company, which had paid all cost of outlay for its explorers; but Mackenzie assumed risk and cost himself. Then the Indians hesitated to act as guides; so Mackenzie hired guides when he could, seized them by compulsion when he couldn't hire them, and went ahead without guides when they escaped.

[Illustration: Eskimo trading his Pipe, carved from Walrus Tusk,
for the Value of Three Beaver Skins.]

May—the frog moon—and June—the bird's egg moon—were the festive seasons at Fort Chipewyan on Lake Athabasca. Indian hunters came tramping in from the Barren Lands with toboggan loads of pelts drawn by half-wild husky dogs. Woody Crees and Slaves and Chipewyans paddled across the lake in canoes laden to the gunwales with furs. A world of white skin tepees sprang up like mushrooms round the fur post. By June the traders had collected the furs, sorted and shipped them in flotillas of keel boat, barge, and canoe, east to Lake Superior and Montreal. On the evening of June 2, 1789, Alexander Mackenzie, chief trader, had finished the year's trade and sent the furs to the Eastern warehouses of the Northwest Company, on Lake Superior, at Fort William, not far from where Radisson had first explored, and La Vérendrye followed. Indians lingered round the fort of the Northern lake engaged in mad boissons, or drinking matches, that used up a winter's earnings in the spree of a single week. Along the shore lay upturned canoes, keels red against the blue of the lake, and everywhere in the dark burned the red fires of the boatmen melting resin to gum the seams of the canoes; for the canoes were to be launched on a long voyage the next day. Mackenzie was going to float down with the current of the Athabasca or Grand River, and find out where that great river emptied in the North.

The crew must have spent the night in a last wild spree; for it was nine in the morning before all hands were ready to embark. In Mackenzie's large birch canoe went four Canadian voyageurs, their Indian wives, and a German. In other canoes were the Indian hunters and interpreters, led by "English Chief," who had often been to Hudson Bay. Few provisions were taken. The men were to hunt, the women to cook and keep the voyageurs supplied with moccasins, which wore out at the rate of one pair a day for each man. Traders bound for Slave Lake followed behind. Only fifty miles were made the first day. Henceforth Mackenzie embarked his men at three and four in the morning.

[Illustration: Quill and Bead Work on Buckskin, Mackenzie River Indians.]