But it offered an opportunity for exploring unknown regions which Champlain could not bring himself to decline. Accordingly, on the 9th of July, 1615, Champlain embarked with an interpreter, a French servant, and ten savages, in two birch-bark canoes. They ascended the Ottawa, entered the Mattawan, and by other waters reached Lake Nipissing. Crossing this lake and following the channel of French River, they entered Lake Huron, or the Georgian Bay, and coasted along until they reached the present county of Simcoe. Here they found the missionary Le Caron, who had preceded them. Eight Frenchmen belonging to his company joined that of Champlain. The mustering hosts of the savage warriors came in from every direction. At length, crossing Lake Simcoe, by rivers and lakes and frequent portages they reached Lake Ontario just as it merges into the River St. Lawrence, and passing over to the New York side, they concealed their canoes in a thicket near the shore, and proceeded by land; striking inland, crossing the stream now known as Oneida River, they finally, on the 10th of October, reached the great Iroquois fortress, situated a few miles south of the eastern end of Oneida Lake. This fort was hexagonal in form, constructed of four rows of palisades thirty feet in height, with a gallery near the top, and water-spouts for the extinguishing of fire. It inclosed several acres, and was a strong work of its kind. The attack of the allies was fierce and desultory, without plan or system, notwithstanding Champlain’s efforts to direct it. A considerable number of the Iroquois were killed by the French firearms, and many were wounded; but no effective impression was made upon the fortress. After lingering before the fort some days, the allies began their retreat. Champlain, having been wounded, was transported in a basket made for the purpose. Returning to the other side of Lake Ontario, to a famous hunting-ground,—probably north of the present town of Kingston,—they remained several weeks, capturing a large number of deer. When the frosts of December had sealed up the ground, the streams, and lakes, they returned to the home of the Hurons in Simcoe, dragging with incredible labor their stores of venison through bog and fen and pathless forest. Here Champlain passed the winter, making excursions to neighboring Indian tribes, and studying their habits and character from his personal observation, and writing out the results with great minuteness and detail. As soon as the season was sufficiently advanced, Champlain began his journey homeward by the circuitous route of his advance, and arrived safely after an absence of nearly a year. Having put in execution plans for the repair and enlargement of the buildings at Quebec, he returned to France.