JOURNAL. 
i4i 
CHAP. I. 
ON Monday the 14th of May 1804, we left 
our establishment at the mouth of the river du Bois 
or Wood river, a small river which falls into the 
Mississippi, on the east side, a mile below the Mis- 
souri, and having crossed the Mississippi proceeded 
up the Missouri on our intended voyage of discovery, 
under the command of Captain Clarke. Captain 
Lewis was to join us in two or three days oh our 
passage.* 
* The confluence of the Missouri and Mississippi rivers 
is in latitude about 38 degrees and forty minutes north, and 
in longitude 92 degrees and an half west of Lon^^n* or 17 
and a third west of Philadelphia. The town of Sjt. Louis is 
14 miles below the mouth of the Missouri on the west side 
of the Mississippi ; and Cahokia about 4 or 5 miles lower 
down on the east side. The longitude Of' 'l^^e places is 
nearly the same with that of the mouth of the' river St. 
Louis at the west end of lake Superior in 46 degrees 45 
minutes north latitude ; about 2 degrees west of New Or- 
leans in latitude 50 degrees north, and the same number 
of degrees east of the most western point of Hudson's Bay, 
in latitude about 59 degrees north : So that a line drawn 
from New Orleans to Fort Churchhill, at the mouth of 
Churchhill river on the west side of Hudson's Bay, would 
pass very near the mouth of the Missouri and the west end 
of lake Superior, . • 
