Unofficial National Register of Geoheritage Sites

geoheritage map of the United States
Currently, there is no comprehensive national registry that includes all geoheritage sites in the United States. The list being developed here is meant to help strengthen the connections between geoheritage sites and encourage the sharing of best management practices nationwide.
Geoheritage Sites
  • Designated Geologic Sites and Registries
  • Undesignated Geologic Sites
  • Geology Museums
Alabama
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Alabama flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Blue Star Quartz
  • State mineral: Hematite
  • State fossil: Basilosaurus cetoides (Eocene age, whale)
  • State geologic map

Alaska flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Jade
  • State mineral: Gold
  • State fossil: Mammuthus primigenius (Pleistocene age, woolly mammoth)
  • State highpoint:Denali (20,320')
  • State geologic map

Arizona flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Turquoise
  • State mineral: Copper
  • State fossil: Araucarioxylon arizonicum (Triassic age, wood)
  • State highpoint: Humphreys Peak (12,633')
  • State geologic map
Arkansas
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Arkansas flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Diamond
  • State mineral: Quartz
  • State fossil: Not Designated
  • State highpoint: Magazine Mountain (2,753')
  • State geologic map

California flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Benitoite
  • State mineral: Gold
  • State fossil: Smilodon californicus (Pleistocene age, sabertooth cat)
  • State highpoint: Mount Whitney (14,494')
  • State geologic map

Colorado flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Aquamarine
  • State mineral: Gold
  • State fossil: Stegosaurus stenops (Jurassic age, plated dinosaur)
  • State highpoint: Mount Elbert (14,433')
  • State geologic map
Connecticut
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Connecticut flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Garnet
  • State mineral: No Data
  • State fossil: Eubrontes giganteus (Jurassic age, dinosaur track)
  • State highpoint: Mount Frissel (2,380')
  • State geologic map
Delaware
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Delaware flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Silimanite
  • State mineral: No Data
  • State fossil: Belemnitella americana (Cretaceous age, belemnite)
  • State highpoint: Ebright Road at DE-PA State line (448')
  • State geologic map

Florida flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Moonstone
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Britton Hill (345')
  • State geologic map

Georgia flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Quartz
  • State mineral: Staurolite
  • State fossil: Shark tooth (Cretaceous - Miocene age)
  • State highpoint: Brasstown Bald (4,784')
  • State geologic map
Hawaii
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

Hawaii flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Black Coral
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Pu'u Wekiu, Mauna Kea (13,796')
  • State geologic map

Idaho flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Star garnet
  • State mineral: No Data
  • State fossil: Equus simplicidens (Pliocene age, horse)
  • State highpoint: Borah Peak (12,662')
  • State geologic map
Illinois
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Illinois flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Fluorite
  • State mineral: No Data
  • State fossil: Tullimonstrum gregarium (Pennsylvanian age, soft-bodied animal - "Tully Monster")
  • State highpoint: Charles Mound (1,235')
Indiana
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Indiana flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone:No Data
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Charles Mound (1,235')
  • State geologic map
Iowa
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Iowa flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone:No Data
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Hawkeye Point (1,670')
Kansas
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Kansas flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone:No Data
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Mount Sunflower (4,039')
  • State Geologic Map

Kansas flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone:Freshwater pearl
  • State mineral: Coal
  • State fossil: Brachiopod (Ordovician - Mississippian age, shellfish)
  • State highpoint: Black Mountain (4,145')
  • State Geologic Map
Louisiana
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Louisiana flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Agate
  • State mineral: No Data
  • State fossil: Petrified palm wood (Oligocene age, palm)
  • State highpoint: Driskill Mountain (535')
  • State Geologic Map
Maine
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Maine flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Tourmaline
  • State mineral: No Data
  • State fossil: Pertica quadrifaria (Devonian age, plant)
  • State highpoint: Mount Katahdin (5,268')
  • State Geologic Map

Maryland flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Agate
  • State mineral: No Data
  • State fossil: Ecphora gardnerae gardnerae (Miocene age, snail); Astrodon johnstoni (Cretaceous age, sauropod dinosaur)
  • State highpoint: Hoye Crest (3,360')
  • State Geologic Map
Massachusetts
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Massachusetts flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Rhodonite
  • State mineral: Babingtonite
  • State fossil: Dinosaur tracks (Jurassic age, trace fossil tracks)
  • State highpoint: Mount Greylock (3,491')
  • State Geologic Map

Massachusetts flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Chlorastrolite (Isle Royale greenstone)
  • State mineral: No Data
  • State fossil: Mamut americanum (Pliocene - Pleistocene age, mastodon); Petoskey Stone (Devonian age, coral)
  • State highpoint: Mount Arvon (1,979')
  • State Geologic Map
Minnesota
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links Related Links

Massachusetts flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Agate
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Eagle Mountain (2,301')
  • State Geologic Map

Massachusetts flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Basilosaurus (Eocene age, whale); Zygorhiza (Eocene age, whale); petrified wood (Oligocene age, wood)
  • State highpoint: Woodall Mountain (806')
  • State Geologic Map

Missouri flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Galena
  • State mineral: No Data
  • State fossil: Delocrinus missouriensis (Pennsylvanian age, crinoid); Hypsibema missouriense (Cretaceous age, dinosaur)
  • State highpoint: Taum Sauk Mountain (1,772')
  • State Geologic Map

Montana flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Sapphire
  • State mineral: No Data
  • State fossil: Maiasaura peeblesorum (Cretaceous age, duckbilled dinosaur)
  • State highpoint: State Highpoint: Granite Peak (12,799')
  • State Geologic Map

Nebraska flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Blue agate
  • State mineral: No Data
  • State fossil: Archidiskodon imperator (Pleistocene age, mammoth); mammoth (Pleistocene age, mammoth)
  • State highpoint: Panorama Point (5,424')

Nevada flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Opal and Tuquoise
  • State mineral: No Data
  • State fossil: Shonisaurus popularis (Triassic age, ichthyosaur)
  • State highpoint: Boundary Peak (13,140')

New Hampshire flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Smoky quartz
  • State mineral: Beryl
  • State fossil: Not Designated
  • State highpoint: Mount Washington (6,288')
  • State Geologic Map

New Jersey flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Hadrosaurus foulkii (Cretaceous age, duckbilled dinosaur)
  • State highpoint: High Point (1,803')
  • State Geologic Map

New Mexico flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Turquoise
  • State mineral: No Data
  • State fossil: Coelophysis bauri (Triassic age, theropod dinosaur)
  • State highpoint: Wheeler Peak (13,161')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Garnet
  • State mineral: No Data
  • State fossil: Eurypterus remipes (Silurian age, sea scorpion)
  • State highpoint: Mount Marcy (5,344')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Emerald
  • State mineral: Gold
  • State fossil: Not Designated
  • State highpoint: Mount Mitchell (6,684')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Teredo petrified wood (Paleocene age, shipworm-bored wood)
  • State highpoint: White Butte (3,506')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Flint
  • State mineral: No Data
  • State fossil: Isotelus (Ordovician age, trilobite)
  • State highpoint: Campbell Hill (1,550')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Saurophaganax maximus (Jurassic age, theropod dinosaur)
  • State highpoint: Black Mesa (4,973')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Oregon sunstone
  • State mineral: No Data
  • State fossil: Metasequoia (Miocene age, conifer leaf)
  • State highpoint: Mount Hood (11,239')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Phacops rana (Devonian age, trilobite)
  • State highpoint: Mount Davis (3,213')
  • State Geologic Map
Rhode Island
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Bowenite
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Jerimoth Hill (812')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Amethyst
  • State mineral: No Data
  • State fossil: Not Designated
  • State highpoint: Sassafras Mountain (3,560')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Agate
  • State mineral: No Data
  • State fossil: Triceratops (Cretaceous age, horned dinosaur)
  • State highpoint: Harney Peak (7,242')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Agate
  • State mineral: No Data
  • State fossil: Pterotrigonia thoracica (Cretaceous age, bivalve)
  • State highpoint: Clingmans Dome (6,643')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Texas blue topaz
  • State mineral: Silver
  • State fossil: Pleurocoelus (Cretaceous age, sauropod dinosaur); petrified palm wood (Oligocene age)
  • State highpoint: Guadalupe Peak (8,749')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Topaz
  • State mineral: Copper
  • State fossil: Allosaurus (Jurassic age, theropod dinosaur)
  • State highpoint: Kings Peak (13,528')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Garnet
  • State mineral: Talc
  • State fossil: Delphinapterus leucas (Pleistocene age, white beluga whale)
  • State highpoint: Mount Mansfield (4,393')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: No Data
  • State fossil: Chesapecten jeffersonius (Miocene - Pliocene age, bivalve)
  • State highpoint: Mount Rogers (5,729')
  • State Geologic Map

State flag small
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: Petrified wood
  • State fossil: Not Designated
  • State highpoint: Mount Rainier (14,411')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: Fossil coral (Lithostrotionella)
  • State fossil: Not Designated
  • State highpoint: Spruce Knob (4,863')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: No Data
  • State mineral: Galena
  • State fossil: Calymene celebra (Ordovician - Silurian age, trilobite)
  • State highpoint: Timms Hill (1,951')
  • State Geologic Map

State flag small courtesy of State-Flags-USA.com
Geology Quick Facts
  • State gemstone: Jade
  • State mineral: No Data
  • State fossil: Knightia (Eocene age, fish); Triceratops (Cretaceous age, horned dinosaur)
  • State highpoint: Gannett Peak (13,804')
  • State Geologic Map
American Samoa
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

American Samoa flag small
Geology Quick Facts
  • Gemstone: No Data
  • Mineral: No Data
  • Highpoint: Lata Mountain (3,160')
District of Columbia
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

District of Columbia flag small
Geology Quick Facts
  • Gemstone: No Data
  • Mineral: No Data
  • Highpoint: Tenleytown at Reno Reservoir (410')
Guam
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

Guam flag small
Geology Quick Facts
  • Gemstone: No Data
  • Mineral: No Data
  • Highpoint: Mount Lamlam (1,332')
Puerto Rico
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

Puerto Rico flag small
Geology Quick Facts
  • Gemstone: No Data
  • Mineral: No Data
  • Highpoint: Cerro de Punta (4,390')
Virgin Islands
Geoheritage Sites
  • No Data
Multi-site Registry Links Multi-site General Links

Virgin Islands flag small
Geology Quick Facts
  • Gemstone: No Data
  • Mineral: No Data
  • Highpoint: Crown Mountain (1,556')