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Mackenzie
Mackenzie river, c.1,120 mi (1,800 km) long, issuing from Great Slave Lake, Northwest Territories, Canada, and flowing generally NW to the Arctic Ocean through a great delta. Between Great Slave Lake and Lake Athabasca it is known as the Slave River. At Lake Athabasca, the Finlay-Peace river system...
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Athabasca
Athabasca , river, 765 mi (1,231 km) long, rising in the Columbia snowfield of the Canadian Rockies near the Alta.-British Columbia line and flowing N through Jasper National Park, then NE and N across central Alta. to Lake Athabasca. It is the southernmost headstream of the Mackenzie River. Its chi...
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Athabasca Pass
Athabasca Pass 5,736 ft (1,748 m) high, W Alta. and E British Columbia, Canada, leading from the headwaters of the Athabasca River across the Continental Divide to the Columbia River. It was discovered by David Thompson, a Canadian fur trader, or one of his agents c.1811, and for the next 50 years ...
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Alberta
Alberta , province (2001 pop. 2,974,807), 255,285 sq mi (661,188 sq km), including 6,485 sq mi (16,796 sq km) of water surface, W Canada.
Land and People
Alberta is bounded on the E by Saskatchewan, on the N by the Northwest Territories, on the W by British Columbia, and on the S by Montan...
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Lesser Slave Lake
Lesser Slave Lake 60 mi (97 km) long and from 3 to 10 mi (4.8-16 km) wide, central Alta., Canada, NW of Edmonton. It drains E into the Athabasca River by the Lesser Slave River. In addition to commercial fishing, there is lumbering and farming on its shores.
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Lake Athabasca
Lake Athabasca fourth largest lake of Canada, c.3,120 sq mi (8,100 sq km), c.200 mi (320 km) long and from 5 to 35 mi (8-56 km) wide, NE Alta., and SW Sask., at the edge of the Canadian Shield. A part of the Mackenzie River system, the lake receives the Athabasca River from the south and drains N i...
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Fort McMurray
Fort McMurray town (1991 pop. 34,706), NE Alta., Canada, on the Athabasca and Clearwater rivers. Since the beginning of the mining of Alberta's oil sands in 1964, the town's population has grown from 1,200. It is an important river port and transshipment point for the Northwest Territories.
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Slave
Slave river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and the Peace River into Great Slave Lake at Fort Resolution. It is navigable for steamers except for the rapids be...
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Sir Alexander Mackenzie
Sir Alexander Mackenzie 1764?-1820, Canadian fur trader and explorer, b. Scotland. His family took him to the colony of New York in 1774, and later he was sent to Canada. He entered (c.1779) a Montreal fur-trading firm and in a short time became partner of one of the firms that merged (1787) to for...
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Edmonton
Edmonton , city (1991 pop. 616,741), provincial capital, central Alta., Canada, on the North Saskatchewan River. The center of the largest metropolitan area in Alberta, Edmonton, known as the "Gateway to the North," is located in the center of the province between the fertile valleys of the sout...
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