A current, however, sets diagonally to the left of this rocky barrier, where there is a chasm forty-five yards in width.

Through this the whole body of the river roars along, swelling and whirling and boiling for some distance in the wildest confusion.

Through this tremendous channel the intrepid explorers of the river, Lewis and Clarke, passed in their boats; the danger being, not from the rocks, but from the great surges and whirlpools.
At the distance of a mile and a half from the foot of this narrow channel is a rapid, formed by two rocky islands; and two miles beyond is a second great fall, over a ledge of rocks twenty feet high, extending nearly from shore to shore.

The river is again compressed into a channel from fifty to a hundred feet wide, worn through a rough bed of hard black rock, along which it boils and roars with great fury for the distance of three miles.

This is called "The Long Narrows." Here is the great fishing place of the Columbia.