To proceed up Green River with a party, thence to cross to the Bell Kedgwick by the portage, and having, by expeditions from the banks of that stream, surveyed the remainder of the claimed boundary, to fall down the stream to the Bay of Chaleurs, and, ascending the highland measured in 1840, to proceed along the heights in order to reach if possible the northwest angle of Nova Scotia.
The work being the most remote and difficult of access of any on the whole boundary, it was necessary to take measures early, and, it being apparent that if they were not vigorously pressed the whole summer's work would be frustrated, permission was granted by the Secretary of State to prepare stores and provisions, and the party was sent forward toward its line of operations. Care was, however, taken, in conformity with his instructions, to secure means of communication.
3. The transportation of stores, equipage, and instruments was rendered unexpectedly easy by a steamboat running from Portland to St. John, and by the politeness of the British consul at Portland and the collector of Her Britannic Majesty's customs at St. John free entrance was permitted at the latter port. These articles were shipped from Portland the 19th of June and under the charge of the Hon. Albert Smith reached the Grand Falls of St. John July ——.
4. Mr. Lally, first assistant engineer, with the surveyor, was dispatched by the way of Bangor and Houlton to the same point of rendezvous on 18th June for the purpose of procuring boats and engaging laborers. Mr. H.B. Renwick, first assistant, with Mr. F. Smith, second assistant, were placed in charge of the chronometers and the necessary astronomic instruments, with instructions to observe on the meridian of the St. Croix at Houlton, and again at its intersection with the river St. John, for the purpose of ascertaining the rate taken by the chronometers when carried. These preliminary operations being successfully performed, the party was completely organized at the Grand Falls of the St. John on the 2d July. The energy and activity of the persons intrusted with these several duties was such that this date of complete preparation for the field duties was at least a week earlier than any calculation founded on the experience of former years rendered probable. The commissioner, advised of the negotiation in progress, had made his arrangements to reach the Grand Falls of the St. John on the 10th July. Being directed by the State Department to remain in New York, he sent orders by mail to the party to halt until further instructions.
5. These orders were not received, for the party, being fully organized, left the Grand Falls in three different detachments on the 4th, 6th, and 8th of July. The first detachment was composed of the surveyor, Mr. Bell, and an engineer having instructions to make a survey of Green River. The second was in charge of the assistant commissary, and was composed of three bateaux and fourteen pirogues, carrying stores and equipage for three months' service. The third was formed by the two first assistants, who, after performing the necessary astronomic observations at the Grand Falls and at two points on Green River, passed the surveying party and reached the portage between Green and Kedgwick rivers on the evening of the 13th July.
6. Green River has a fall and rapids near its junction with the St. John, which are passed by a portage of 1-1/2 miles. At 15 miles from its mouth is a second fall, which is passed by a portage of 82 yards. The stream for this distance and for 5 miles above the second fall is very rapid, its bed being in some reaches almost filled with rocks. For the next 10 miles it has deep still reaches, alternating with gravel beds, or else the river flows over ledges of rock. It is then interrupted by a third fall, requiring a portage of 176 yards. Thence to the second fork of the lakes it has the same character as for the last 10 miles, except that in some places it flows with a gentle current between low banks covered with alder. From the second fork of the lakes to the southern end of the Green River and Kedgwick portage the stream is very narrow and may be styled one continuous rapid. It is upon the whole the most difficult of navigation of all the streams running into the St. John from its northern side, and approaches in its character of a torrent to the waters on the St. Lawrence side of the highlands.
7. The portage from Green River to the South Branch of Kedgwick is 5-1/4 miles in length, and passes over the summits of two of the highest mountains in the ceded district, as well as several ridges. No vessel heavier than a birch canoe had ever before been carried over it. It therefore became necessary to clear it out before the bateaux and other heavy articles could be transported. Fifteen extra laborers, who had been engaged, with their pirogues, to carry some of the stores from the St. John, were retained to aid in making this portage, which swelled the number to twenty-seven. This large force was industriously engaged for eight days in carrying the stores and equipage over the portage, with the boats and canoes required for the future operations of the party. In the meantime the portage was surveyed, and a great number of observations were made, by which the latitude of the southern end of the portage and its difference in longitude from that of the meridian line were determined with great accuracy. In addition to the other labors of the party, a storehouse and observatory were erected.
8. The commissioner, learning that the party had left the Grand Falls before his letter could have reached that place, addressed fresh orders to the engineer in command. These were sent under cover to the British postmaster at Lake Temiscouata, who was requested to send them up Green River by an express. By these he was directed to stop the progress of the party and to proceed himself to the river Du Loup, there to await fresh instructions.
These orders did not arrive in time to prevent the party intended for the survey of the boundary from setting out. The engineer who had hitherto been in command returned to the St. John in pursuance of his original instructions and met the express on his way down Green River. The commissioner, being advised on the 13th July that the treaty had been signed, immediately dispatched a special messenger, who joined the chief of the division at the mouth of Green River on the 24th July. Measures were now taken for the recall and return of the party in the woods, and the whole division was assembled at the stationary camp at the north end of the portage on the 11th of August.
9. The party engaged in the survey of the remaining part of the boundary line had before the orders of recall reached them successfully accomplished that duty, having connected their survey with points in the survey of the previous year and thoroughly explored the culminating points of the valley of Rimouski. As had been anticipated from the level of the streams seen in 1841, this portion of the boundary claimed by the United States is more elevated than any other portion of that line between the Temiscouata portage and the northwest angle of Nova Scotia. This survey would therefore have added an important link to the argument of the United States had not the question been settled by treaty.