SURVEY OF THE BOUNDARY LINE BETWEEN IDAHO 
AND MONTANA FROM THE INTERNATIONAL 
BOUNDARY TO THE CREST OF THE 
BITTERROOT MOUNTAINS. 
By Richard IT. Goode. 
INSTRUCTIONS. 
The survey of the boundary line between Idaho and Montana was 
provided for by the Fifty-fourth Congress in the sundry civil act 
approved June 4, 1897. 
The following correspondence is self-explanatory: 
Department op the Interior, 
United States Geological Survey, 
Washington, D. C, June 5, 1897. 
The honorable the Secretary of the Interior. 
Sir: In response to your verbal request, 1 have the honor to transmit herewith 
suggested instructions relating to the survey of the boundary line between Idaho 
and Montana. 
I am, with respect, your obedient servant, 
Chas. D. Walcott, Director. 
instructions relating to the survey of the boundary line between 
idaho and montana. 
Included in the act making appropriations for sundry civil expenses of the Gov- 
ernment for the fiscal year ending June 30, 1898, and for other purposes, is found 
the following law: 
For surveying that portion of the boundary line between Idaho and Montana 
beginning at the intersection of the thirty-ninth meridian with a boundary line 
between the United States and the British possessions, including the retracing of 
so much of the international boundary line as ma;' be found necessary for the 
determination of said intersection, then following said meridian south until it 
reaches the summit of the Bitterroot Mountains, and for locating points on said 
meridian by triangulation from the Spokane base of the United States Geological 
Survey, and on the continuation of said boundary line along the Bitterroot Moun- 
tains between Idaho and Montana, seven thousand six hundred and fifty dollars, 
or so much thereof as may be necessary, to be immediately available: Provided, 
That the Secretary of the Interior shall direct that the survey shall be executed 
under the supervision of the Director of the Geological Survey by such persons 
as may be employed by or under him for that purpose, and such survey shall be 
executed under instructions to be issued by the Secretary of the Interior: Provided, 
further, That the plats and field notes thereof prepare- 1 shall be approved and 
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