Rockhounding sites in Illinois

69 rockhounding collecting destinations in Illinois.

Illinois rockhounding map

Interactive pins for coordinate-verified, indexable listings in Illinois. Click a marker for the full site page.

36 mapped sites shown · list continues below

Use this page as your Illinois rockhounding map — Illinois has 69 rockhounding sites in our directory, including 5 agate & jasper, 10 geodes, 1 gemstones, 32 fossils, 3 gold & minerals. Use rockhounding sites near me for live distance sorting or browse by city.

Near major cities: Chicago · Rockford · Springfield

By specimen type: Agate & Jasper (5) · Geodes (10) · Fossils (32) · Gold & Minerals (3) · Other (18)

Frequently asked questions

Where can I find rockhounding sites in Illinois?

Our Illinois rockhounding map lists 69 cataloged sites with GPS, fees, and specimen types at /states/illinois/. Filter by type or use near-me GPS sorting from your location.

Is there a Illinois rockhounding map?

Yes — the Illinois state hub at /states/illinois/ works as your rockhounding map with every listing, featured sites, and links to specimen-type subsets.

What can you find rockhounding in Illinois?

Specimens vary by region — browse the Illinois map for quartz, agate, geodes, fossils, and gems. Each listing notes primary targets and access rules.

What to pack for Illinois rockhounding trips

Compared day-trip gear for Illinois rockhounding sites — side-by-side tables for the hike in, sun, and sun, tools, and the approach hike.

Chisels & Wedges — Split matrix cleanly and protect your specimens

Chisels & Wedges

Split matrix cleanly and protect your specimens

5 products compared

Safety Glasses — Non-negotiable eye protection when hammering rock

Safety Glasses

Non-negotiable eye protection when hammering rock

4 products compared

Specimen Bags & Wrap — Get your finds home without chips and scratches

Specimen Bags & Wrap

Get your finds home without chips and scratches

4 products compared

Field Gloves — Cut and abrasion protection for sharp rock and tools

Field Gloves

Cut and abrasion protection for sharp rock and tools

4 products compared

All gear categories →

Disclosure: Gear links may earn a commission as an Amazon Associate — at no extra cost to you. Learn more.

Popular rockhounding sites in Illinois

Most-searched spots — open each listing for directions, fees, and safety notes.

Bensenville Dolomite Geodes — geode rockhounding site near Elmhurst, IL

GeodeIL

Bensenville Dolomite Geodes

Chicago area dolomite quarries historically produced small quartz geodes; remaining access is limited to creek exposures west of the city.

Fee variesElmhurst

Cave-in-rock Fluorite District — fluorite rockhounding site near Cave-in-rock, IL

FluoriteIL

Cave-in-rock Fluorite District

Southern Illinois fluorspar district near Cave-in-Rock produced purple and yellow fluorite cubes for generations in Mississippi Valley type deposits.

Fee variesCave-in-rock

Galena Lead Mine District — galena rockhounding site near Galena, IL

GalenaIL

Galena Lead Mine District

The city of Galena sits atop historic lead-zinc deposits where collectors find galena cubes in area tailings and creek exposures.

Fee variesGalena

Thornton Quarry Fossils — fossil rockhounding site near Thornton, IL

FossilIL

Thornton Quarry Fossils

Silurian reef fossils in the Thornton quarry are world-class but the active operation prohibits public collecting; specimens seen at museums.

Fee variesThornton

All 69 listings

Barite-fluorite Prospect Number 1 — barite rockhounding site near Pope, IL

BariteIL

Barite-fluorite Prospect Number 1

Barite-Fluorite Prospect Number 1 is a known mineral occurrence in Pope, Illinois, documented by the USGS Mineral Resources Data System. Reported specimens include Barite, Fluorite.

Fee variesPope

Barnett Mine — fluorite rockhounding site near Pope, IL

FluoriteIL

Barnett Mine

Barnett Mine is a historic mining site in Pope, Illinois, documented by the USGS Mineral Resources Data System. Reported specimens include Fluorite, Galena, Sphalerite.

Fee variesPope

Bed C. Clear Creek, Along South Bank And In Bed Of Intermittent Stream — fossil rockhounding site near Illinois, IL

FossilIL

Bed C. Clear Creek, Along South Bank And In Bed Of Intermittent Stream

Fossil collection site in the St. Laurent, Union County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Bellflower — fossil rockhounding site near Illinois, IL

FossilIL

Bellflower

Fossil collection site, McLean County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Bensenville Dolomite Geodes — geode rockhounding site near Elmhurst, IL

GeodeIL

Bensenville Dolomite Geodes

Chicago area dolomite quarries historically produced small quartz geodes; remaining access is limited to creek exposures west of the city.

Fee variesElmhurst

Bishop Hill — agate rockhounding site near Illinois, IL

AgateIL

Bishop Hill

Bishop Hill is a documented mineral occurrence near IL. Reported specimens include Agate, Jasper. Verify land access and collecting rules before visiting.

Fee variesIllinois

Cahokia — fossil rockhounding site near Illinois, IL

FossilIL

Cahokia

Fossil collection site, St. Clair County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Carlinville — fossil rockhounding site near The Carbondale, IL

FossilIL

Carlinville

Fossil collection site in the Carbondale, Illinois. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesThe Carbondale

Cave In Rock — mixed rockhounding site near IL, IL

MixedIL

Cave In Rock

Cave In Rock is a documented rockhounding destination in IL. Collectors visit for mixed minerals and rocks and related material. Access rules and land ownership vary — confirm current status with the managing agency or landowner before collecting.

Fee variesIllinois

Cave-in-rock Fluorite District — fluorite rockhounding site near Cave-in-rock, IL

FluoriteIL

Cave-in-rock Fluorite District

Southern Illinois fluorspar district near Cave-in-Rock produced purple and yellow fluorite cubes for generations in Mississippi Valley type deposits.

Fee variesCave-in-rock

Charleston — fossil rockhounding site near Illinois, IL

FossilIL

Charleston

Fossil collection site, Coles County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Coal City — fossil rockhounding site near Illinois, IL

FossilIL

Coal City

Coal City is a documented mineral occurrence near IL. Reported specimens include Concretions with fossils. Verify land access and collecting rules before visiting.

Fee variesIllinois

Cordova — agate rockhounding site near Illinois, IL

AgateIL

Cordova

Cordova is a documented mineral occurrence near IL. Reported specimens include Agate. Verify land access and collecting rules before visiting.

Fee variesIllinois

Crotalocrinites-eucalyptocrinites Association Of The Gower Formation — fossil rockhounding site near Illinois, IL

FossilIL

Crotalocrinites-eucalyptocrinites Association Of The Gower Formation

Fossil collection site in the Gower, Rock Island County County, Illinois. Environment: reef, buildup or bioherm. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Crystal Glen Creek — geode rockhounding site near Illinois, IL

GeodeIL

Crystal Glen Creek

Crystal Glen Creek is a documented mineral occurrence near IL. Reported specimens include Geodes, Barite, Calcite, Dolomite, Goethite, Pyrite, Quartz, Selenite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Dad And Me With 'sue' — mixed rockhounding site near IL, IL

MixedIL

Dad And Me With 'sue'

Dad and me with 'Sue' is a documented rockhounding destination in IL. Collectors visit for mixed minerals and rocks and related material. Access rules and land ownership vary — confirm current status with the managing agency or landowner before collecting.

Fee variesIllinois

Dallas City — geode rockhounding site near Illinois, IL

GeodeIL

Dallas City

Dallas City is a documented mineral occurrence near IL. Reported specimens include Geodes, Calcite, Malachite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Drilling On The Herkimer Farm, 2.41 Km Northwest Of The Center Of Mattoon — fossil rockhounding site near Illinois, IL

FossilIL

Drilling On The Herkimer Farm, 2.41 Km Northwest Of The Center Of Mattoon

Fossil collection site in the Grand Tower Limestone, Coles County, Illinois. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

East Brooklyn — marcasite rockhounding site near Illinois, IL

MarcasiteIL

East Brooklyn

East Brooklyn is a documented mineral occurrence near IL. Reported specimens include Marcasite, Pyrite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Edwards County — siderite rockhounding site near Illinois, IL

SideriteIL

Edwards County

Edwards County is a documented mineral occurrence near IL. Reported specimens include Siderite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Elizabethtown — aragonite rockhounding site near Illinois, IL

AragoniteIL

Elizabethtown

Elizabethtown is a documented mineral occurrence near IL. Reported specimens include Aragonite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Fayville — agate rockhounding site near Illinois, IL

AgateIL

Fayville

Fayville is a documented mineral occurrence near IL. Reported specimens include Agate, Jasper, Diamond. Verify land access and collecting rules before visiting.

Fee variesIllinois

Fisher Site — fossil rockhounding site near Illinois, IL

FossilIL

Fisher Site

Fossil collection site, Will County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Fluorite - Various Colors — mineral rockhounding site near IL, IL

MineralIL

Fluorite - Various Colors

Fluorite - various colors is a documented rockhounding destination in IL. Collectors visit for assorted minerals, ore samples and related material. Access rules and land ownership vary — confirm current status with the managing agency or landowner before collecting.

Fee variesIllinois

Galena Lead Mine District — galena rockhounding site near Galena, IL

GalenaIL

Galena Lead Mine District

The city of Galena sits atop historic lead-zinc deposits where collectors find galena cubes in area tailings and creek exposures.

Fee variesGalena

Glen Park Formation, Stratigraphic Locality 396 (poor Farm Hollow Road), Calhoun — fossil rockhounding site near Illinois, IL

FossilIL

Glen Park Formation, Stratigraphic Locality 396 (poor Farm Hollow Road), Calhoun

Fossil collection site in the Glen Park, Calhoun County, Illinois. Environment: shallow subtidal indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Hamilton — agate rockhounding site near Illinois, IL

AgateIL

Hamilton

Hamilton is a documented mineral occurrence near IL. Reported specimens include Agate, Jasper, Geodes. Verify land access and collecting rules before visiting.

Fee variesIllinois

Hamilton (west) — geode rockhounding site near Illinois, IL

GeodeIL

Hamilton (west)

Hamilton (west) is a documented mineral occurrence near IL. Reported specimens include Geodes. Verify land access and collecting rules before visiting.

Fee variesIllinois

Hamilton Quarry — geode rockhounding site near Illinois, IL

GeodeIL

Hamilton Quarry

Hamilton Quarry is a documented mineral occurrence near IL. Reported specimens include Geodes, Pyrite, Calcite, Sphalerite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Huber Site — fossil rockhounding site near Illinois, IL

FossilIL

Huber Site

Fossil collection site, Cook County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Lasalle Limestone Member, Bond Fm., Near Pontiac, Livingstone County, Il — fossil rockhounding site near Illinois, IL

FossilIL

Lasalle Limestone Member, Bond Fm., Near Pontiac, Livingstone County, Il

Fossil collection site in the Bond, Livingston County County, Illinois. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Locality 14. Along Stream & Dirt Road, 1½ Miles South Of Marigold — fossil rockhounding site near Illinois, IL

FossilIL

Locality 14. Along Stream & Dirt Road, 1½ Miles South Of Marigold

Fossil collection site in the Haney Limestone, Johnson County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Mazon River — fossil rockhounding site near The Carbondale, IL

FossilIL

Mazon River

Fossil collection site in the Carbondale, Illinois. Environment: deltaic indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesThe Carbondale

Mckee Creek — geode rockhounding site near Illinois, IL

GeodeIL

Mckee Creek

McKee Creek is a documented mineral occurrence near IL. Reported specimens include Geodes, Sphalerite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Minerva Mine Area — alstonite rockhounding site near Illinois, IL

AlstoniteIL

Minerva Mine Area

Minerva Mine Area is a documented mineral occurrence near IL. Reported specimens include Alstonite, Barite, Strontianite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Mississippi River (near Hamilton) — geode rockhounding site near Illinois, IL

GeodeIL

Mississippi River (near Hamilton)

Mississippi River (near Hamilton) is a documented mineral occurrence near IL. Reported specimens include Geodes, Amethyst, Quartz. Verify land access and collecting rules before visiting.

Fee variesIllinois

Mom & Me In Front Of The Field Museum — mixed rockhounding site near IL, IL

MixedIL

Mom & Me In Front Of The Field Museum

Mom & me in front of the Field Museum is a documented rockhounding destination in IL. Collectors visit for mixed minerals and rocks and related material. Access rules and land ownership vary — confirm current status with the managing agency or landowner before collecting.

Fee variesIllinois

Mt. Vernon Area — diamond rockhounding site near Illinois, IL

DiamondIL

Mt. Vernon Area

Mt. Vernon Area is a documented mineral occurrence near IL. Reported specimens include Diamond. Verify land access and collecting rules before visiting.

Fee variesIllinois

Naperville — fossil rockhounding site near Illinois, IL

FossilIL

Naperville

Fossil collection site, DuPage County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Nauvoo — geode rockhounding site near Illinois, IL

GeodeIL

Nauvoo

Nauvoo is a documented mineral occurrence near IL. Reported specimens include Geodes. Verify land access and collecting rules before visiting.

Fee variesIllinois

Near Thebes — fossil rockhounding site near The Bowling Green, IL

FossilIL

Near Thebes

Fossil collection site in the Bowling Green, Illinois. Environment: coastal indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesThe Bowling Green

Niota — fossil rockhounding site near Illinois, IL

FossilIL

Niota

Niota is a documented mineral occurrence near IL. Reported specimens include Fossils, Geodes. Verify land access and collecting rules before visiting.

Fee variesIllinois

North Aurora — bornite rockhounding site near Illinois, IL

BorniteIL

North Aurora

North Aurora is a documented mineral occurrence near IL. Reported specimens include Bornite, Calcite, Chalcopyrite, Pyrite. Verify land access and collecting rules before visiting.

Fee variesIllinois

North End Of Orchard Creek Exposure, 1.6 Km North Of Thebes — fossil rockhounding site near Illinois, IL

FossilIL

North End Of Orchard Creek Exposure, 1.6 Km North Of Thebes

Fossil collection site in the Orchard Creek Shale, Alexander County, Illinois. Environment: shallow subtidal indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Palestine — siderite rockhounding site near Illinois, IL

SideriteIL

Palestine

Palestine is a documented mineral occurrence near IL. Reported specimens include Siderite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Paris Mammoth — fossil rockhounding site near Illinois, IL

FossilIL

Paris Mammoth

Fossil collection site, Edgar County, Illinois. Environment: glacial. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Peter's Cave — fossil rockhounding site near Illinois, IL

FossilIL

Peter's Cave

Fossil collection site, Jackson County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Pittsburg Mine — fluorite rockhounding site near Pope, IL

FluoriteIL

Pittsburg Mine

Pittsburg Mine is a historic mining site in Pope, Illinois, documented by the USGS Mineral Resources Data System. Reported specimens include Fluorite, Sphalerite.

Fee variesPope

Porter Brothers Quarry On West Side Of Old Highway 2, 1 Mile South Of Rockton — fossil rockhounding site near Illinois, IL

FossilIL

Porter Brothers Quarry On West Side Of Old Highway 2, 1 Mile South Of Rockton

Fossil collection site in the Dunleith, Winnebago County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Rapatee Strip Mine — pyritized gastropods rockhounding site near Illinois, IL

Pyritized GastropodsIL

Rapatee Strip Mine

Rapatee Strip Mine is a documented mineral occurrence near IL. Reported specimens include Pyritized Gastropods. Verify land access and collecting rules before visiting.

Fee variesIllinois

Rock Island — fossil rockhounding site near Illinois, IL

FossilIL

Rock Island

Fossil collection site, Rock Island County, Illinois. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Rosiclare — calcite rockhounding site near Illinois, IL

CalciteIL

Rosiclare

Rosiclare is a documented mineral occurrence near IL. Reported specimens include Calcite, Blue Fluorite, Yellow Fluorite, Purple Fluorite, Sphalerite. Verify land access and collecting rules before visiting.

Fee variesIllinois

Salt Spring Hollow, About Two Miles North Of The Hollow South Of Kritesville — fossil rockhounding site near Illinois, IL

FossilIL

Salt Spring Hollow, About Two Miles North Of The Hollow South Of Kritesville

Fossil collection site in the Little Cedar, Calhoun County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Shawnee Medium Interest Fluorine Deposit — barite rockhounding site near Illinois, IL

BariteIL

Shawnee Medium Interest Fluorine Deposit

Shawnee Medium Interest Fluorine Deposit is a known mineral occurrence in Pope, Hardin, Illinois, documented by the USGS Mineral Resources Data System. Reported specimens include Barite, Fluorite, Galena, Sphalerite.

Fee variesIllinois

Shawneetown — fossil rockhounding site near County, IL

FossilIL

Shawneetown

Fossil collection site, Gallatin County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesCounty

Sinkhole Quarry In East Part Of Evansville, Between Rr And East-west County Road — fossil rockhounding site near Illinois, IL

FossilIL

Sinkhole Quarry In East Part Of Evansville, Between Rr And East-west County Road

Fossil collection site in the Okaw, Randolph County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Sparta — mineral rockhounding site near Illinois, IL

MineralIL

Sparta

Sparta is a documented mineral occurrence near IL. Reported specimens include Pyrite, Fossils. Verify land access and collecting rules before visiting.

Fee variesIllinois

Spillman Creek — geode rockhounding site near Illinois, IL

GeodeIL

Spillman Creek

Spillman Creek is a documented mineral occurrence near IL. Reported specimens include Geodes, Pyrite, Chalcedony, Sphalerite, Quartz. Verify land access and collecting rules before visiting.

Fee variesIllinois

St. Joseph — fossil rockhounding site near Illinois, IL

FossilIL

St. Joseph

Fossil collection site, Champaign County, Illinois. Environment: terrestrial indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Tar Springs Loc. 2 — fossil rockhounding site near Illinois, IL

FossilIL

Tar Springs Loc. 2

Fossil collection site in the Tar Springs, Johnson County, Illinois. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Tarter Collection 1 — fossil rockhounding site near Illinois, IL

FossilIL

Tarter Collection 1

Fossil collection site in the Tradewater, Johnson County, Illinois. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Terre Haute — fossil rockhounding site near Illinois, IL

FossilIL

Terre Haute

Terre Haute is a documented mineral occurrence near IL. Reported specimens include Fossils. Verify land access and collecting rules before visiting.

Fee variesIllinois

Thebes — agate rockhounding site near Illinois, IL

AgateIL

Thebes

Thebes is a documented mineral occurrence near IL. Reported specimens include Agate, Jasper. Verify land access and collecting rules before visiting.

Fee variesIllinois

Thornton Quarry Fossils — fossil rockhounding site near Thornton, IL

FossilIL

Thornton Quarry Fossils

Silurian reef fossils in the Thornton quarry are world-class but the active operation prohibits public collecting; specimens seen at museums.

Fee variesThornton

Tully Monster — mixed rockhounding site near IL, IL

MixedIL

Tully Monster

Tully Monster is a documented rockhounding destination in IL. Collectors visit for mixed minerals and rocks and related material. Access rules and land ownership vary — confirm current status with the managing agency or landowner before collecting.

Fee variesIllinois

Two Old Quarries Just East Of The Illinois And Michigan Canal, Romeoville — fossil rockhounding site near Illinois, IL

FossilIL

Two Old Quarries Just East Of The Illinois And Michigan Canal, Romeoville

Fossil collection site in the Joliet Dolomite, Will County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Type Localitity Of Shumway Limestone Member, Matttoon Fm., Shumway Cyclothem — fossil rockhounding site near Illinois, IL

FossilIL

Type Localitity Of Shumway Limestone Member, Matttoon Fm., Shumway Cyclothem

Fossil collection site in the Mattoon, Effingham County County, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.

Fee variesIllinois

Tyson Creek — geode rockhounding site near Illinois, IL

GeodeIL

Tyson Creek

Tyson Creek is a documented mineral occurrence near IL. Reported specimens include Geodes. Verify land access and collecting rules before visiting.

Fee variesIllinois

Zinc Barite Occurrence No. 1 — barite rockhounding site near Pope, IL

BariteIL

Zinc Barite Occurrence No. 1

Zinc Barite Occurrence No. 1 is a known mineral occurrence in Pope, Illinois, documented by the USGS Mineral Resources Data System. Reported specimens include Barite, Sphalerite.

Fee variesPope