EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 
WAR DEPARTMENT. 
ROUTE NEAR FORTY-SEVENTH AND FORTY-NINTH PARALLELS, EXPLORED BY ISAAC I. STEVENS, GOV- 
ERNOR OF WASHINGTON TERRITORY, IN 1853-'5. 
GENERAL REPORT. 
WASHINGTON, D. C. 
1860. 
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