Upon cutting into those blazes it was seen that deep seated in the tree there was a scar, the surface of the original blaze, slightly decayed, and upon counting the rings (which indicate each year’s growth of the tree) it was found that the blazes dated back to 1772, 1773, and 1774.  The line of Valentine and Collins was run in 1771, 1772, 1773, and 1774.  The coincidence of the dates of the blazes with those of the above line, confirmed by the testimony of the people of the country, satisfied the undersigned that the line they had found was that mentioned in the treaty.  Along this portion of the boundary, which is known as the forty-fifth degree of Valentine and Collins, and which extends from Halls Stream to St. Regis, there are several interruptions to the blazes in those parts where clearings have been made, and there the authentic marks of the precise situation of the old line have been lost.  In those cases the undersigned have drawn the boundary line straight from the original blazes on the one side of a clearing to the original blazes on the other side of the same clearing.

It can not be positively stated that the line as it has been traced through those clearings precisely coincides with the old line, but the undersigned believe that it does not differ materially from it; nor have they had the means of determining a nearer or a surer approximation.

Along this line, at every point of deflection, an iron monument has been erected; also at the crossing of rivers, lakes, and roads.  Those which mark deflections are placed, as on the “north line,” anglewise with the line; all the others are placed square with it.  The maps show the position of each.

On the eastern shore of Lake Memphremagog an astronomical station was established, and on a large flat rock of granite, which happened to lie between the astronomical station and the boundary, was cut the following inscription: 

Capt:  Robinson. 
Ast:  Station
422 feet north.
Meridian Line.
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Boundary Line
595 feet south
August, 1845.

British Boundary Commission

A mark was cut upon the stone, as indicated by the dot upon the meridian line above, from which these measurements were made.

At Rouses Point a monument of wrought stone was set up at the intersection of the boundary by the meridian of the transit instrument used there by Major Graham, and an inscription was cut upon it stating the latitude and longitude, the names of the observer and his assistant, the names of the commissioners, and the territories divided.

To mark the position of the instruments used at the following astronomical stations along the west line, two monuments within a few feet of each other have been erected at each station, and they have been placed on the boundary line due north or south of the instrument, as the case may have been.