N.lat., the voyager comes to Hudson's Straits, which, if followed up first to the northwards and then to the south-west, would lead him into the great expanse of Hudson's Bay, one of the most important features in the geography of North America.
HUDSON'S BAY, which is a great inland sea with an area of about 315,000 square miles, has a southern loop or extension called James Bay, the shores of which are not at a very great distance either from Lake Superior to the south-west, or from the source of the River Saguenay on the south.

The Saguenay flows into the Lower St.Lawrence River.

It is therefore not surprising that as soon as the French began to settle in Lower Canada they heard of a vast northern inland sea of salt water--Hudson's Bay.

But the people who discovered and surveyed Hudson's Bay during the seventeenth, eighteenth, and nineteenth centuries were always on the search for a passage out of its waters into the Arctic Sea, which would enable them to get right round America into the Pacific Ocean.
In Arctic North America Nature really seems to have been preparing during millions of years a grim joke with which to baffle exploring humanity! It is easy enough to pass from Davis Straits into Hudson's Bay, but to get out of Hudson's Bay in the direction of the Arctic Ocean is like getting out of a very cleverly arranged maze.

There are innumerable false exits, which have disappointed one Arctic explorer after another.