These explorations of the territory beyond the Mississippi had little immediate bearing on the interests of commerce or agriculture; but the government was actively engaged in measures of direct value. July 4, 1805, William Henry Harrison, Governor of the Indiana Territory, closed a bargain with the Wyandots, Ottawas, and other Indian tribes, by which the Indian title over another part of Ohio was extinguished. The Indians thenceforward held within the State of Ohio only the country west of Sandusky and north of the old line fixed by the treaty of Greenville. Within the year the Piankeshaw tribe sold for a small annuity a tract of land in southern Indiana, along the Ohio River, which made the United States government master of the whole north bank of the Ohio to its mouth. These concessions, of the utmost value, were obtained at a trifling cost. “The average price paid for the Indian lands within the last four years,” wrote the Secretary of War,[7] “does not amount to one cent per acre.” The Chickasaws and Cherokees sold a very large district between the Cumberland and Tennessee rivers in Tennessee, so that thenceforward the road from Knoxville to Nashville passed through no Indian land. In Georgia the Creeks were induced to sell an important territory between the Oconee and Ocmulgee rivers. In these treaties provision was also made for horse-roads through the Creek and Cherokee country, both from Knoxville and from central Georgia to the Mobile River. Besides the many millions of acres thus gained for immediate improvement, these treaties had no little strategic value in case of war. No foreign country could fail to see that the outlying American settlements were defenceless in their isolation. Even the fort and village at Detroit were separated from the nearest white village by a wide Indian country impassable to wagons or artillery; and the helplessness of such posts was so evident as to impress every observer. “The principles of our government,” said Jefferson when danger at last arose,[8] “leading us to the employment of such moderate garrisons in time of peace as may merely take care of the post, and to a reliance on the neighboring militia for its support in the first moments of war, I have thought it would be important to obtain from the Indians such a cession in the neighborhood of these posts as might maintain a militia proportioned to this object.”