Beginning at the standing Stone Forks of the Great Miami River, & down the said River to its Confluence with the Ohio River, thence with the Ohio River to the small Stream or Rivulet above Fort Massac—thence with the Eastern Boundary Line of St Clair County to the Mouth of the Little Michilmakinac, thence up the Illinois River to the Forks or Confluence of the Thekiki & Chikago, thence by a Line to be drawn due North to the Boundary Line of the Territory of the United States, & so far Easterly upon said Boundary Line, as that a due South Line may be drawn to the Place of Beginning— Should be a County by the Name & Style of the County of Knox
