EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 
WAR DEPARTMENT. 
ROUTE NEAR THE THIRTY-SECOND PARALLEL OF NORTH LATITUDE. 
REPORT 
EXTRACT 
FROM 
OF A MILITARY RECONNAISSANCE, 
MADE IN 1846 AND 1847, 
BIT 
LIEUT. COL. W. H. EMORY. 
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