LETTER TO THE SECRETARY OF WAR. 



Washington, February 9, ISST. 

 Sir : I have tlie honor to transmit, herewith, the report of explorations and surveys made 

 for Pacific railroad purposes, in pursuance of your instructions. The report embraces the 

 operations of the party in the field, and results ohtairied ; and is accompanied by maps and 

 profiles of the route surveyed, exhibiting the topograj^hy of the districts through which they 

 are located, and a continuous profile of the route by the 32d parallel, showing therein the data, 

 as obtained from the present survey. 



Very respectfully, your obedient servant, 



JOHN G. PARKE, 

 Lieutenant Corps of Topographical Engineers. 

 Hon. Jefferson Davis, 



Secretary of War. 



