November 7, 1766 | Statute An act for opening a road through the frontiers of this colony to Fort Pitt on the Ohio. For improving commerce with the Indians of the Ohio valley and to facilitate supplying British garrisons along the frontier, the General Assembly authorized Thomas Walker and other gentlemen to "lay out" and "direct" the clearing of a road from the north branch of the Potomac River to Fort Pitt. The act mandated that the road run near Braddock Road.
November 5, 1768 | Treaty Treaty of Fort Stanwix After expressing their "apprehension" regarding the failure of colonists to strictly observe the 1765 boundary line between Indian Territory and the British colonies, continued negotiations produced this treaty. It describes in detail the line between the Six Nations, tribes of the Ohio, various dependent tribes, and the thirteen seaboard colonies. The agreement effectively closed off legitimate settlement of the Ohio Valley. However, it was ignored by many colonists who migrated west and squatted illegally on Indian lands. The inability of colonial authorities to effectively prevent these illegal settlements west of the boundary aggravated the situation between the various tribes of the region and white settlers along the frontier.
January 24, 1784 | Letter Thomas Jefferson to Thomas Hutchins, January 24, 1784 Thomas Jefferson writes to geographer Thomas Hutchins with questions and remarks about one of Hutchins' pamphlets, "A Topographical Description of Virginia, Pennsylvania, Maryland and North Carolina, Comprehending the Rivers Ohio, Kenhawa, Sioto, Cherokee, Wabash, Illinois, Mississippi, &c...With a Plan of the Rapids of the Ohio, A Plan of the Several Villages in the Illinois Country, a Table of the Distances Between Fort Pitt and the Mouth of the Ohio." In his remarks, Jefferson notes several mistakes in the work.
May 21, 1784 | Letter Thomas Jefferson to James Monroe, May 21, 1784 Thomas Jefferson worries about the evolving western borders and territory of the United States.