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History/Great Slave Lake
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Laurent Leroux: Founder of Two Forts

Of the few non-aboriginals who became well acquainted with Great Slave Lake in the late 18th century, trader Laurent Leroux was perhaps the most productive. From 1796 – 1789, Leroux established trading posts on behalf of Gregory, MacLeod & Company at Fort Resolution, on the lake’s south shore, and on behalf of the newly-amalgamated North West Company at Fort Providence, near modern-day Yellowknife, on the north shore.

The Old Fort Providence Historic Site
Located near Wool Bay, just outside the city of Yellowknife, the archaeological site of Old Fort Providence contains the remains of at least 4 log buildings spread over 1 hectare. While only the stone fireplaces of the structures are visible through the overgrowth, excavations conducted from 1969 – 1971 have revealed that the post included post-on-sill living quarters and a main trade building. Established by North West Company employee Laurent Leroux, the post housed 10-20 people, including women and children, during the last decade of the 18th century, but dwindled to a 2-person operation by 1822. Although the explorer John Franklin used the post as a stop-over point during his first expedition to the Arctic in 1820, the fort was abandoned in 1823. Today, Old Fort Providence is protected from disturbance by the Northwest Territories Archaeological Sites Regulations. Name Note: Old Fort Providence, near Yellowknife at the north end of Great Slave Lake is not be confused with the modern-day community of Fort Providence, west of Great Slave Lake on the Mackenzie River.

In 1786, Leroux was a 27-year-old clerk with Gregory, MacLeod, based at Michilimackinac, when he received orders from his superior, John Ross, to set up a trading post far to the northwest, on the south shore of Great Slave Lake. The frontier post was a direct response to fierce competition from Nor’Wester Peter Pond, who had sent Cuthbert Grant (Senior) down the Slave River on a similar mission. En route to the lake, both Grant and Leroux faced the rigours of the Slave River rapids between Fort Fitzgerald and Fort Smith; Grant lost 5 men to the “Rapids of the Drowned.”

(Although Grant and Leroux managed to conduct business side by side, bitter rivalry between Pond and Ross led to the fatal shooting of Ross; for the second time in his career, Pond was accused of murder. He was not convicted, but his reputation was irretrievably tarnished. As cooler heads prevailed, the decision was made to merge Gregory, MacLeod with the North West Company.)

Leroux remained at his Great Slave post for 2 years. In June of 1789, Leroux joined Alexander Mackenzie in his journey from Fort Chipewyan, down the Slave River, and across Great Slave Lake in search of the “great river” to the west. According to a pre-arranged plan, Leroux parted ways with Mackenzie, heading northwest to trade at La Martre Lake, while Mackenzie headed southwest. When Leroux met up with Mackenzie on the explorer’s return trip from the Arctic Coast, it was decided that Leroux would winter at the lake. During the fall of 1789, he built Fort Providence, now known as Old Fort Providence, and remained there for at least another year.

Leroux retired from fur trading soon after leaving Great Slave Lake, and returned to his birthplace of L’Assomption, Quebec. The rugged young adventurer became a highly successful merchant, industrialist, property owner and politician, and lived to the age of 95.

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