ARCHIBALD CAMPBELL, Commissioner Northern Boundary Survey to Hamilton Fish, December 2, 1874

Mr. Campbell to Mr. Fish.

Sir: I have the honor to transmit herewith, for the information of the Department, a preliminary report and sketch from Major W. J. Twining, United States Engineers, chief astronomer of the commission, showing the progress of the survey of the boundary during the past season.

From this report it will be seen that the survey of the boundary-line defined in the treaty of 1818 has been completed, and connected (on the summit of the Rocky Mountains) with the eastern terminus of the boundary-line from the Pacific Ocean defined in the treaty of 1816. The whole boundary-line between the United States and British Possessions has now been established, with the exception of the boundary between British Columbia and Alaska.

The United States commission and the British commission are now engaged in working out the results of their field operations for the purpose of preparing the final joint maps necessary to a proper representation of the boundary-line and the territories adjacent thereto.

I have the honor to be, very respectfully, your obedient servant,