Part 40

On the Southwest Branch there are two principal forks, at each of which two monuments have been erected, one on each bank of the river immediately above the forks and upon the branch established as the boundary. The maps point out their positions. At the mouth of the small stream selected as the source of the Southwest Branch a monument has been erected upon a delta formed by two small outlets. Above those outlets three other monuments have been placed at intervals upon the same stream.

Upon the crest of the dividing ridge, very close to the source of the Southwest Branch, a large monument has been erected. It is the first point in the highlands, and from it the boundary runs along the crest in a southerly direction, passing near to the southeastern shore of the Portage Lake, and so on to a large monument erected on a small eminence on the east side of the Kennebec road. Thence it passes through a dwelling house called Tachereau's, which was standing there at the time the line was run; so, by a tortuous course, it runs to the top of Sandy Stream Mountain; thence, inclining to the southwest, it runs over Hog Back the First, as shown in the maps; thence toward Hog Back the Second, which it leaves on the north side. Further on, at the head of Leech Lake, there is a stream which divides its waters and flows both into Canada and into the United States. The boundary has been made to run up that stream a short distance from the fork where the waters divide to a second fork; thence between the streams which unite to form that fork, and then to ascend again the dividing ridge. A monument has been erected at the fork first mentioned, where the waters divide.

As the boundary approaches the valley of Spider River it bends to the southeast, and, by a wide circuit over high and steep hills, it turns the head of Spider River; thence it bends to the northwest until it approaches within about 4 miles of Lake Megantic; thence it turns again south, having the valley of Arnolds River on the right and of Dead River on the left. It leaves Gasford Mountain in Canada, threads its way over very high ground between the head of Arnolds River and the tributaries of the Magalloway; inclines then to the north, so to the west, over very rocky, mountainous, and difficult country, leaving Gipps Peak in the United States, and turns by a sharp angle at Saddle Back to the south. After that it again inclines to the west, and then to the south, and again to the west, and passes the head of the Connecticut. About 3 miles and a half east of the head of the Connecticut there is a division of waters similar to that described near Leech Lake. The boundary runs down a stream from near its source to the fork where it divides, and then again follows the dividing ridge. The spot is noted on the map.

After the boundary has passed the head of the Connecticut it runs to the northwest, descending into very low, swampy ground between the heads of Indian Stream and the tributaries of the St. Francis. Thus it passes on, bending again to the south of west, over a high hill, to the source of Halls Stream.

Iron monuments have been erected at intervals along the highlands from the source of the Southwest Branch of the St. John to the source of Halls Stream, the position of each of which is shown upon the maps.

From the source of Halls Stream the boundary descends that river, dividing the islands, which are, however, merely unimportant alluvial deposits, in the manner indicated by the maps until it reaches the intersection of that stream by the line formerly run by Valentine and Collins as the forty-fifth degree of north latitude.

At that point a large monument has been erected on the right and a small one on the left bank of the stream. Monuments have also been erected along the bank of this stream, as indicated on the maps.

The line of Valentine and Collins was explored and found by the blazes still remaining in the original forest.

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. -----------------------------()--------------------------------

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.

The stations are: Lake Memphremagog, Richford, John McCoy's, Trout River.

The boundary along the west line, though very far from being a straight line, is generally about half a mile north of the true parallel of latitude 45° from Halls Stream to Rouses Point. At about 28 miles west of Rouses Point it, however, crosses that parallel to the south until it reaches Chateaugay River, where it bends northward, and, crossing the parallel again about 4 miles east of St. Regis, it strikes the St. Lawrence 151 feet north of 45°. At that point a large monument has been erected on the bank of the St. Lawrence. Two large monuments have also been erected, one on either side of the river Richelieu near Rouses Point.

No marks of the old line were to be found about St. Regis. It was therefore agreed to run a line due west from the last blaze which should be found in the woods on the east side of St. Regis. That blaze occurred about 1 mile east of the St. Regis River.

The maps, which exhibit the boundary on a scale of 4 inches to 1 statute mile, consist of 62 consecutive sheets of antiquarian paper as constructed by the British and of 61 as constructed by the American commission. A general map has also been constructed on a scale of 8 miles to 1 inch by the British and of 10 miles to 1 inch by the American commission, upon which the before-mentioned sheets are represented.

The following portions of the boundary have been laid down by the British commission, on detached maps, on a scale of 12 inches to 1 mile, which have been signed by both commissioners:

Grand Falls of the St. John, including the intersection of that river by the north line; islands of the St. John; the outlet of Lake Pohenagamook; the turning point of the boundary on the Northwest Branch of the St. John; the intersection of the Southwest Branch by the parallel of latitude 46° 25'; the source of the Southwest Branch; the source of Halls Stream; the intersection of Halls Stream by the west line; Rouses Point; St. Regis; Derby.

But similar maps have not been prepared by the American commission, because during the interval between the finishing of the maps of the British commission and those of the American it was thought that the maps already constructed upon a scale of 4 inches to 1 mile represented the boundary with sufficient clearness and accuracy.

The astronomical observations were begun at the Grand Falls early in June, 1843, and were carried up the St. John River to the Northwest Branch by a chain of stations, which, together with the results obtained, are tabulated in the appendix accompanying this report.

From the valley of the St. John an astronomical connection was made with Quebec, and thence to Montreal, and so to Rouses Point. From Rouses Point a connection was obtained with Cambridge University, near Boston.

The astronomical stations on the west line were: Intersection of Halls Stream by the west line, Lake Memphremagog, Richford, Rouses Point, John McCoy's, Trout River, St. Regis.