With two bark canoes, laden with provisions, arms, and a few trifles as presents for the savages, an Indian guide, four Frenchmen, one of whom was the mendacious Vignan, Champlain left the rendezvous at Montreal on the 27th of May. After getting over the Lachine Rapids, they crossed Lake St. Louis and the Two Mountains, and, passing up the Ottawa, now expanding into a broad lake and again contracting into narrows, whence its pent-up waters swept over precipices and boulders in furious, foaming currents, they at length, after incredible labor, reached the island Allumette, a distance of not less than two hundred and twenty-five miles. In no expedition which Champlain had thus far undertaken had he encountered obstacles so formidable. The falls and rapids in the river were numerous and difficult to pass. Sometimes a portage was impossible on account of the denseness of the forests, in which case they were compelled to drag their canoes by ropes, wading along the edge of the water, or clinging to the precipitous banks of the river as best they could. When a portage could not be avoided, it was necessary to carry their armor, provisions, clothing, and canoes through the forests, over precipices, and sometimes over stretches of territory where some tornado had prostrated the huge pines in tangled confusion, through which a pathway was almost impossible. [76] To lighten their burdens, nearly every thing was abandoned but their canoes. Fish and wild-fowl were an uncertain reliance for food, and sometimes they toiled on for twenty-four hours with scarcely any thing to appease their craving appetites.