Mi
ss
ou
riR
ive
r
Mis
sis
sip
pi
Ri
ve
r
Calumet Bluffs
ta-
Kush
datsa and
andan villages
LA CHARETTE
ST.LOUIS
ST. CHARLES
Il
li
n
o
is
T
e
rr
it
or
y
i c t o f L o u i s i a n a
FORT
MANDAN
ARIKARA
VILLAGES
Lewis and Clark
Lewis
Clark
Ordway and Gass
Support camps
Encounter with Indians
Battle
TETON
SIOUX
YANKTON
SIOUX
PAWNEE
OTO
KANSA
Lewis and Clark, 1804–1806
185
Santa Fé
SOUTH
SEA
Mer du Nord West
Hudson’s
Bay
Salt Lake
MissouriR.
Sto
ny
M
oun
tai
ns
Mi
ssi
ssi
pp
iR
.
No
rth
Peter Pond, 1784 R.
Naberk
istagen
R.
Pond believed it was possible to travel by boat nearly to the Pacific, via
the Missouri and “Naberkistagen Rivers.” But Pond’s map included
some intervening “Stony” mountains between the two rivers.
Santa Fé
Kansas
Hudson’s
Bay
Slave Lake
River of
N the West
O
RT
H
PA
CI
FI
C
OC
EA
N
NO
RT
H
AT
LA
NT
IC
O
CE
AN
Missouri
R.
Mi
ssis
sip
piR
.
Stoney Mts.
Morse, 1797
Morse imagined that the Missouri nearly connected with the “River
of the West.” He did not realize that the “Stoney” (Rocky) Mountains
were in the way.
Yet Lewis, seemingly oblivious to the boulder-strewn
streams and deep ravines that impeded his portage, remained
optimistic. On August 10 he wrote that if the Columbia River
beyond the mountains was like what he had so far encoun-
tered,“a communication across the continent by water will be
practicable and safe.”Then he began the long climb into the
Bitterroot Mountains, eventually coming to the Continental
Divide near the Lemhi Pass. Beyond the summit, Lewis saw an
endless range of “unknown formidable snow clad Mountains.”
A navigable water route through the Rockies did not exist.
On December 5, they spotted the Pacific, built Fort
Clatsop, and spent the winter there. The following spring
they commenced the trek home. They divided into several
parties to explore more of the Rockies. On September 23,
1806, they reached St. Louis.
Question for Discussion
■Maps convey information; they also indicate what mat-
tered to the mapmakers. Compare the most common
maps used nowadays—such as those found at
mapquest.com—with the eighteenth-century maps pro-
vided in this section. What do the maps—then and now—
show about the people who made and used them?