Mr. Boutwell to Mr. Fish.
Sir: I have the honor to inclose herewith a letter, dated the 23d ul timo, from the collector of customs at Pembina, Minnesota, relative to a change effected by a survey recently made by a United States military commission, under Major General Sykes, United States Army, in the line heretofore recognized as the proper boundary between the United States and the British Possessions in that region, fixed by treaty at the forty-ninth parallel of latitude. It is therein stated that the line now established is 4,600 feet north of that heretofore recognized, and the results of the change are, in one respect, at least, noted therein.
I will thank you for any information upon the subject you may be able to furnish; and whether said newline has been established by competent authority binding upon the two governments of Great Britain and the United States.