Adams-Onís Treaty, 1819
Claimed by United States
and Great Britain
BRITISH POSSESSIONS
BRITISH
POSSESSION
r i R.
Adams-Onís Treaty Line
R ed R
io
R
U.S. territory
e
nd
ra
G
Acquired by Adams-Onís Treaty
L. Michigan
RI
ie
PA
NJ
DE
Washington,
Washington
VA
MD
NC
TN
Arkansas Territory
MEXICO
r
.E
KY
Ark
a
.
Texas
iR
iR
Miissssisissipipp
M
. .
d
o
ra
OH
IN
MA
NY
CT
L
R.
.
as R
ns
PACIFIC
OCEAN
lo
IL
rit
y
Great
Salt
Lake
NH
L.
L. Ontario
Ontario
or
Missouri Territory
Co
Te
r
on
ur
H
M i c h i g an
VT
L.
R.
OREGON COUNTRY
ME
L. Superior
Oh
io
M issou
SC
MS
AL
LA
ATLANTIC
OCEAN
GA
Florid
Florida Cession
British territory
N
Spanish territory
Disputed territory
Joint U.S. and British territory
Gulf of Mexico
0
0
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300 miles
300 km