Beginning at the forty-second mile tree, on the line of the original grant of land by the United States to the Ohio company, which line was run by Israel Ludlow, and running from thence west, until it shall intersect a line to be drawn due north from the mouth of Elk river, (commonly called Eagle creek) and from the point of intersection running north, to the southern boundary of the county of Wayne, and from thence easterly with the said boundary of Wayne