Line of Property

The first interpretation is that the line was intended to follow the principal (west) branch of Towanda Creek which runs eastward along the base of the very prominent north face of Barclay Mountain (which forms the northernmost range of the Endless Mountains) from Canton, Pennsylvania to Towanda.

Most likely, the line was intended to reach the Towanda Creek headwaters along the headwaters of Lycoming Creek, which flows southwest along the base of Barclay Mountain to Roaring Branch, Pennsylvania, where it is joined by Roaring Branch which itself follows the base of Laurel Hill upstream in the same direction from a watershed divide at Jackson Corners on US 15.

A second interpretation is based primarily on the existence of a Burnett's Ridge in Lycoming County on the east of PA14 beginning at Bodines south of Ralston, Pennsylvania and running east into Sullivan County, Pennsylvania; on its plateau are the headwaters of Schrader Creek, a major tributary of Towanda Creek which flows to the south of Barclay Mountain.

The line would presumably follow Pleasant Stream upstream from Lycoming Creek at Marsh Hill, Pennsylvania to the watershed divide near Wheelerville in Sullivan County and then down Schrader Creek; this is the route later taken by the Susquehanna and New York Railroad and is the easiest and most direct footpath between the two branches of the Susquehanna River.

The second interpretation would have been in favor of the Indians, adding the valley lands from Jersey Shore to Williamsport and a large hunting area at the headwaters of Pine Creek to their portion.

The sketch map of 1768 places the Delaware much too far north, and shows the projected east-west line intersecting it below the confluence of the East Branch at Hancock, which is actually considerably to the south of the latitude of Owego.

It is probable that this portion of the line was never surveyed before the Revolution, but instead a north-south line (present-day boundary between the towns of Tioga and Owego in Tioga County, New York) was dropped from Owego to the New York–Pennsylvania border near the 42nd parallel north sometime after this border was surveyed in 1786, and the Delaware River was followed a few miles upstream (north) from the initial monument of this border near the 42nd parallel north to reach Deposit.

It also included a slice of New York State east of the Unadilla and west of the previous line of settlement near Cherry Valley.

Boundary line map 1768 agreed to by Indians at the Treaty of Fort Stanwix; the new red line replaced the green line of 1763
Map showing Pennsylvania and the territory involved in the purchase of 1768.
Map from The Old New York Frontier by Francis W. Halsey (1901) showing the author's interpretation of the 1768 Fort Stanwix Treaty line
Fragment of Guy Johnson's map of the Line of Property 1768; section centered at Burnetts Hills
Fragment of Guy Johnson's map of the Line of Property 1768; section centered at Owego
Title block of Guy Johnson's map of the Line of Property 1768