Ever since the time when the Erie Canal was begun, Canadian statesmen had been alive to the strong bid New York was making for the trade of the Great Lakes. Their answer to the Erie Canal was the Welland Canal, built between 1824 and 1832 and connecting Lake Erie with Lake Ontario by a series of twenty-seven locks with a drop of three hundred feet in twenty-six miles. This undertaking prepared the way for the subsequent opening of the St. Lawrence canal system (183 miles) and of the Rideau system by way of the Ottawa River (246 miles). There was thus provided an ocean outlet to the north, although it was not until 1856 that an American vessel reached London by way of the St. Lawrence. With the Hudson and the St. Lawrence in the East thus competing for the trade of the Great Lakes, it is not surprising that the call of the Mississippi for improved highways was presently heard. From the period of the War of 1812 onward the position of the Mississippi River in relation to Lake Michigan was often referred to as holding possibilities of great importance in the development of Western commerce. Already the old portage-path links between the Fox and Wisconsin and the Chicago and Illinois rivers had been worn deep by the fur traders of many generations, and with the dawning of the new era enthusiasts of Illinois were pointing out the strategic position of the latter route for a great trade between Lake Michigan and the Gulf of Mexico. Thus the wave of enthusiasm for canal construction that had swept New York and Ohio now reached Indiana and Illinois. Indian ownership of land in the latter State for a moment seemed to block the promotion of the proposed Illinois and Michigan Canal, but a handsome grant of a quarter of a million acres by the Federal Government in 1827 came as a signal recognition of the growing importance of the Northwest; and an appropriation for the lighting and improving of the harbor of the little village of Chicago was hailed by ardent promoters as sure proof that the wedding of Lake Michigan and the Mississippi was but a matter of months. All the difficulties encountered by the advocates of earlier works of this character, in the valleys of the Potomac, the Susquehanna, and the Mohawk, were the portion of these dogged promoters of Illinois. Here, as elsewhere, there were rival routes and methods of construction, opposition of jealous sections not immediately benefited, estimates which had to be reconsidered and augmented, and so on. The land grants pledged to pay the bonds were at first of small value, and their advance in price depended on the success of the canal itself, which could not be built--unless the State underwrote the whole enterprise--if the lands were not worth the bonds. Thus the argument ran in a circle, and no one could foresee the splendid traffic and receipts from tolls that would result from the completed canal.