Alexander Mackenzie, Voyages from Montreal Through the Continent of North America to the Frozen and Pacific Oceans in 1789 and 1793…
“ Thursday, 25.—We left this place at three this morning, our canoe being deeply laden, as we had embarked some packages that had come in the canoes of M. Le Roux. We were saluted on our departure with some volleys of small arms, which we returned, and steered South by West straight across the bay, which is here no more than two miles and a half broad, but, from the accounts of the natives, it is fifteen leagues in depth, with a much greater breadth in several parts, and full of islands. I sounded in the course of the traverse and found six fathoms with a sandy bottom. ”
