Disregarding as militarily unimportant the artificial boundary dividing Canada from New York, Vermont, and the eastern parts of the Union, the frontier separating the land positions of the two belligerents was the Great Lakes and the river St. Lawrence. This presented certain characteristic and unusual features. That it was a water line was a condition not uncommon; but it was exceptionally marked by those broad expanses which constitute inland seas of great size and depth, navigable by vessels of the largest sea-going dimensions. This water system, being continuous and in continual progress, is best conceived by applying to the whole, from Lake Superior to the ocean, the name of the great river, the St. Lawrence, which on the one hand unites it to the sea, and on the other divides the inner waters from the outer by a barrier of rapids, impassable to ships that otherwise could navigate freely both lakes and ocean. The importance of the lakes to military operations must always be great, but it was much enhanced in 1812 by the undeveloped condition of land communications. With the roads in the state they then were, the movement of men, and still more of supplies, was vastly more rapid by water than by land. Except in winter, when iron-bound snow covered the ground, the routes of Upper Canada were well-nigh impassable; in spring and in autumn rains, wholly so to heavy vehicles. The mail from Montreal to York,—now Toronto,—three hundred miles, took a month in transit.[88] In October, 1814, when the war was virtually over, the British general at Niagara lamented to the commander-in-chief that, owing to the refusal of the navy to carry troops, an important detachment was left “to struggle through the dreadful roads from Kingston to York.”[89] “Should reinforcements and provisions not arrive, the naval commander would,” in his opinion, “have much to answer for.”[90] The commander-in-chief himself wrote: “The command of the lakes enables the enemy to perform in two days what it takes the troops from Kingston sixteen to twenty days of severe marching. Their men arrive fresh; ours fatigued, and with exhausted equipment. The distance from Kingston to the Niagara frontier exceeds two hundred and fifty miles, and part of the way is impracticable for supplies.”[91] On the United States side, road conditions were similar but much less disadvantageous. The water route by Ontario was greatly preferred as a means of transportation, and in parts and at certain seasons was indispensable. Stores for Sackett’s Harbor, for instance, had in early summer to be brought to Oswego, and thence coasted along to their destination, in security or in peril, according to the momentary predominance of one party or the other on the lake. In like manner, it was more convenient to move between the Niagara frontier and the east end of the lake by water; but in case of necessity, men could march. An English traveler in 1818 says: “I