LETTER TO THE SECRETARY OF WAR. 
WASHINGTON City, D. O., February T, 1859. - 
Sir: I have the honor to submit my final report of the explorations made by me and under 
my direction, in the years 1853, 1854, and 1855, to determine the practicability of the northern 
route for a railroad to the Pacific. | 
Iam, very respectfully, your most obedient, 
ISAAC I. STEVENS. 
Hon. Јонх B. Етоүр, 
Secretary of War, Washington City. 
