STATE OF CALIFORNIA - ARNOLD SCHWARZENEGGER, GOVERNOR
THE RESOURCES AGENCY - MIKE CHRISMAN, SECRETARY
CALIFORNIA DEPARTMENT OF CONSERVATION - BRIDGETT LUTHER, DIRECTOR
CALIFORNIA GEOLOGICAL SURVEY
JOHN G. PARRISH, Ph.D., STATE GEOLOGIST
MAP SHEET 57
SIMPLIFIED GEOLOGIC MAP OF CALIFORNIA
SIMPLIFIED GEOLOGIC MAP OF CALIFORNIA
C O R R E L AT I O N O F M A P U N I T S
A ge
S E D I M E N TA RY A N D V O L C A N I C R O C K S
Y
Eel
LA
KE
FA
U
LT
Riv
Granitic rocks
chiefly Mesozoic
T
ET
Feather River
L
RT
BA
S
NG
RI
SP
SUTTER
BUTTES
T
UL
FA
n
ssia
RuRiver
Clear
Lake
65
Serpentinized ultramafic
rocks chiefly Mesozoic
NEVADA CITY
ba
Yu ver
Ri
144
Late Mesozoic (latest
Jurassic and Cretaceous)
marine sedimentary rocks;
Great Valley Sequence
and related rocks
Lake
Tahoe
AA
M
C
AM
A
U
FA
LT
SACRAMENTO
an
eric
Am iver
R
G RE
DR
S
L
VA
EA
DE
LO
Y
408
VE
LA
CA T
UL
FA
LT
RA
BISHOP
AT
DE
U
FA
r
ve
TEM
SY S
EY
VALL
Dotted where concealed;
includes low-angle faults;
arrows indicate direction
or relative movement on
strike-slip faults
FAU
LT
IV
AN
PA
H
AR
ED
C
RO
CK
NEEDLES
DESERT
FA
UL
T
LT
U
FA
FAULT
LT
LT
O
O
D
SA
N
FA
U
NE L
SA
N
FA
U
EL
Santa Catalina Island
FA
UL
T
SI
NO
RE
FA
UL
T
EA
S
FA
UL
T
SA
Sa
lto
n
LT
ON
Se
a
AL
RI
PE
TR
O
U
FA
San Clemente Island
DR
IM
EL CENTRO
LT
AR
UL S
NS GE
NI AN
PE R
TRANSVERSE
RANGES
FAULT
LT
AN
JA
CI
NT
O
LT
MTN
TO
River
U
FA
-I
RT
CHA
N
BANNING F
AULT
O
IN
PO
San Nicolas Island
P ED R
O
FAU
LT
CR PIN
EE
K
lor
ad
o
MISSIO
N
CH
W
NE
ES
NG
WH
ITTIE
R
NG
LE
W
Santa Barbara Island
Copyright © 2006 by the California Department of Conservation, California
Geological Survey. All rights reserved. No part of this publication may be
reproduced without written permission of the California Geological Survey.
P
O
Y
RA
LOS ANGELES
SAN
COLORADO
DESERT
M
LIC
L
SAN BERNARDINO
Santa Rosa Island
PENINSULAR
RANGES
CA
A
RIE
EL
Santa Cruz Island
MOJAVE
DESERT
CA
ULT
IX FA
LT
GA
B
GE
RID
OAK LT
FAU
ON
NY LT
U
FA
U
FA
ES
RANG
San Miguel Island
BASIN AND
RANGE
DA
LE
MAN
U
FA
T
FAUL
SANTA
BARBARA
CHANN
MOJAVE
LE
N
N
SA
D
VA
NE
E
LL
VA
BARBARA
HE
LT
D
O
O
NW
RA
T
SANTA
FA
U
CK
LO
LT
FAU
PINE
YNEZ
LT
LE
ER
T
EA
GR
AS
CO
Point Conception
BIG
VERSE SANTA
R
GA
FAU
LT
R
O
NT
IE
M
CI
SI
FAU
LT
FA
UL
T
TRANS
E
AT
KW
NA
U
FA
EA
S
CA
LT
AC
E
NG
BL
U
FA
FAULT
N
SA
RA
DR
CENOZOIC
Fault
Searles
Lake
ZONE
E
AN
YA
M
A
QUATERNARY
Contact
LT
INT
AM
ON
FAULT
CANY
r
ve
Ri
ES
NG
AD
rn
Ke ver
i
R
BAKERSFIELD
CU
TERTIARY
Y
Ri
E
LL
VA
N
PA
Owens Lake
ADA
NEV
KERN
RA
SC
SAN LUIS OBISPO
Pleistocene-Holocene
H
AT
SI N
LT
gs
Precambrian rocks of
all types including
coarse-grained intrusives
A
Kin
FAU
RR
SIE
as
lin
Sa
x
MT
WHITNEY
MODOC
PLATEAU
BASIN
AND
RANGE
BA
INDEPENDENCE
FRESNO
CA
KLAMATH
MOUNTAINS
RE
G
LT
LEY
VAL
U
FA
A
S
EN
OW
D
VA
T
Shaded relief map
showing the natural
Geomorphic
Provinces
er
in Riv
505
570
NE
S
AS
CO
qu
San Joa
Bay
MONTEREY
Paleozoic sedimentary
and volcanic rocks;
in places strongly
metamorphosed
T
FAUL
MTN
LT
D
y
U
FA
Ba
er
Riv
ced
Mer
Monterey
360
M ono
Lake
Y O S EM ITE
N ATIO N A L
PA RK
BE
sco
AR
YW
HA
nci
ne River
Tuolum
286
E
WHIT
F ra
LE
San
SAN FRANCISCO
er
s Riv
islau
Stan
Pre-Cenozoic metamorphic
rocks of unknown age
RA
AN
Point Reyes
R
HE
OT
M
ne
elum
Mok River
LT
ER
FA
U
245
Mesozoic sedimentary
and volcanic rocks
in places strongly
metamorphosed
SI
N
EE
K
AT
SA
CR
208
Late Mesozoic (latest
Jurassic and Cretaceous)
rocks of the
Franciscan Complex
PLACERVILLE
RO
DG
ER
S
Pliocene
CRETACEOUS
nto River
Sacrame
er
UKIAH
Cenozoic marine
sedimentary rocks
MESOZOIC
S
HO
NE
58
Cenozoic volcanic
rocks
PALEOZOIC
er
Honey Lake
Lake
Almanor
Cenozoic nonmarine
(continental) sedimentary
rocks and alluvial deposits
IN TR U S IV E IGN E OU S A N D
ME TA M OR P H IC R OC K S
PRECAMBRIAN
SUSANVILLE
x
CAMBRIAN SILURIAN-- DEVONIAN CARBON-- PERMIAN TRIASSIC JURASSIC
IFEROUS
ORDOVICIAN
Riv
LASSEN
PEAK
Co
ad
AIN
UNT
M
REDDING
Eagle Lake
TERTIARY-CRETACEOUS
37
MO
r
24
PLATEAU
Shasta
Lake
Oligocene Miocene
River
loud
McC
FAULT
ve
5.3
River
Pit
Paleocene Eocene
1.6
FAULT
Kl a ma th
0.011
Y
VALLE
ALTURAS
E
MTN
H
AT S
AM IN
KL NTA
U
MO
F ORK
CAD
MODOC
?
r
Ri
ve
CAS
TH
ity
Ri
Cape Mendocino
RP
R ISE
SOU
Tri
n
EUREKA
Clear Lake Res.
MT
SHASTA
x
SU
Goose
Lake
In M i l l i o n s
o f Ye a rs
UG
H
Point Loma
SAN DIEGO
0
100 MILES
50
Scale ~
~1:2,250,000
Graphics by Jerry Wampole/CGS