Geologic Hazard Maps

Regional Index Maps

CHDH C (Northwest portion of the County)

EHFH C (Southwest portion of the County)

CIDI C (Northwest portion just to the east of CHDH C)

EIFI C (Southwest portion just to the east of EHFH C)

CJDJ C (Northeast portion just to the west of CKDK C)

EJFJ C (Southeast portion just to the west of EKFK C)

CKDK C (Northeast portion of the County)

EKFK C (Southeast portion of the County)

Valley Region
 Bloomington FH29C  Montclair   FH27C
 Chino FH27C  Muscoy   FH22C
 Colton FH30C  Rancho Cucamonga   FH20C, FH21C
 Crafton FH31C, FH32C  Redlands   FH31C
 Del Rosa FH23C  Rialto   FH21C, FH22C, FH29C
 Devore FH21C  San Cntonio Heights   FH19C
 Fontana FH29C  San Bernardino   FH21C, FH22C
 Grand Terrace FH30C  Upland   FH19C
 Highland FH23C, FH30C, FH32C  Verdemont   FH21C, FH22C
 Loma Linda FH30C, FH31C  Yucaipa   FH32C
 Mentone FH31C, FH32C    
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Mountain Region
 Angles Oaks   FI17C  Holcomb Valley   FH16C, FI09C
 Arrowbear   FH24C  Lake Arrowhead   FH15C, FH23C
 Baldwin Lake   FI10C  Lake Gregory   FH22C
 Barton Flats   FI17C, FI18C  Lytle Creek   FH12C, FH13C, FH20C, FH21C
 Big Bear City (Bear Valley)   FI09C, FI10C, FI17C, FI18C  Mount Baldy   FH11C, FH12C, FH19C
 Big Bear Lake   FI16C, FI17C, FI18C  Oak Glen   FH32C, FI25C
 Blue Jay   FI15C, FH23C  Rim Forest   FH23C
 Cedar Glen   FH15C  Running Springs   FH15C, FH23C
 Cedarpines Park   FH14C. FH22C  Silverwood   FH14C
 Crestline   FH22C, FH23C  Sky Forest   FH23C
 Erwin Lake   FI10C, FI18C  Sugarloaf   FI10C, FI18C
 Fawnskin   FI09C  Twin Peaks   FH23C
 Forest Falls   FI25C (Click here for detailed mud flow and rockfall hazard maps)  Valley of Enchantment   FH22C
 Fredalba   FH23C  West Cajon Valley   FH12C
 Green Valley Lake   FH15C, FH16C, FH24C   Wrightwood    FH11C, FH12C
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Desert Region
Adelanto  EHFHC  Ludlow EIFIC
Amboy EJFJC  Morongo Valley FI28C, FI29C
Apple Valley EH31C, FH07C, FH08C  Needles EKFK C
Baker CIDIC  Newberry Springs EI03C, EI11C, EI12C
Baldy Mesa EHFHC  Oak Hills FH14C
Barstow EH16C  Oro Grande EHFHC
Cadiz EJFJC  Parker Dam EKFKC
Cima CJDJC  Phelan    EHFHC
Daggett EI09C, EI10C  Pinon Hills EHFHC
El Mirage EHFHC  Pioneertown FI21C
Essex EJFJC  Red Mountain  CHDHC
Flamingo Heights FI21C  Rimrock EIFIC
Goffs EJFJC  Silver Lakes  EHFHC
Harvard EI03C  Spring Valley Lake EHFHC
Havasu EKFK C  Summit Valley FH14C
Helendale EHFHC  Trona CHDHC
Hesperia FH07C, FH14C, FH15C  Twentynine Palms FI15C, FI16C, FI23C, FI24C, FJ17C, FJ25C
Hinkley EH08C  Victorville EHFHC
Johnson Valley FI04C  Vidal EKFKC
Joshua Tree FI15C, FI22C, FI23C, FI30C, FI31C  Vidal Junction  EKFKC
Kelso CJDJC  Wonder Valley FJ17C
Kramer CHDHC, EHFHC  Yermo EI02C
Landers FI13C, FI14C  Yucca Mesa FI21C
Lenwood EH08C  Yucca Valley FI21C, FI28C, FI29C
Lucerne Valley EH32CFH08C, FI01C, FI02C, FI03C, FI09C, FI10C  

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