24 rockhounding collecting sites within about 90 miles of Dubuque, Iowa.
This page lists 24 natural rockhounding sites near Dubuque, Iowa, sorted by distance within about 90 miles.
Near Dubuque, Iowa, our directory maps 24 natural rockhounding sites within about 90 miles of the city center — including 4 agate & jaspers, 1 geodes, 15 fossilss, and 1 gold & minerals. The closest mapped spot is Dubuque (5.3 mi straight-line). Distances are not drive time; open each listing for directions, fee notes, access rules, and safety context before you travel.
| Central place | Dubuque, Iowa |
|---|---|
| Search radius | About 90 miles |
| Mapped spots | 24 |
| Closest listing | Dubuque (5.3 mi) |
| Specimen types | Agate & Jasper (4), Geodes (1), Fossils (15), Gold & Minerals (1), Other (3) |
| Typical fees | 24 varies |
24 rockhounding collecting sites in Iowa, sorted by distance from the city center. For live GPS sorting, use rockhounding sites near me.
Dubuque is a documented mineral occurrence near IA. Reported specimens include Lake Superior Agate, Moss Agate, Oolitic agates, Moonstone, Jasper, Petrified wood, Fossils. Verify land access and collecting rules before visiting.
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Fossil collection site in the Scales, Dubuque County County, Iowa. Environment: deep subtidal shelf. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsBellevue is a documented mineral occurrence near IA. Reported specimens include Lake Superior Agate, Moss agate, Carnelian, Moonstone, Jasper, Petrified coral. Verify land access and collecting rules before visiting.
View detailsGuttenburg is a documented mineral occurrence near IA. Reported specimens include Jasper. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Scotch Grove, Iowa. Environment: deep subtidal ramp. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Clayton County is a documented mineral occurrence near IA. Reported specimens include Galena, Limonite, Pyrite, Sphalerite. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Lime Creek, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Harper’s Ferry is a documented mineral occurrence near IA. Reported specimens include Pearls. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Scotch Grove, Iowa. Environment: deep subtidal ramp. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site, Linn County, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site in the Fort Atkinson, Iowa, Illinois. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site in the Coralville, Scott County, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site, Fayette County, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site in the Brainard, Fayette County, Iowa. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site in the Little Cedar, Linn County, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsCedar Rapids is a documented mineral occurrence near IA. Reported specimens include Silicified coral, Calcified coral. Verify land access and collecting rules before visiting.
View detailsFayette County is a documented mineral occurrence near IA. Reported specimens include Lake Superior Agate. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Maquoketa, Allamakee County County, Iowa. Environment: deep subtidal ramp. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site in the Scales Shale, Iowa. Environment: carbonate indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Brandon is a documented mineral occurrence near IA. Reported specimens include Geodes, Fossils. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Scales Shale, Iowa. Environment: deep subtidal ramp. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsFossil collection site, Muscatine County, Iowa. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsCoralville is a documented mineral occurrence near IA. Reported specimens include Silicified coral, Calcified coral. Verify land access and collecting rules before visiting.
View detailsFossil collection site in the Fort Atkinson, Winneshiek County, Iowa. Environment: shallow subtidal indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsPins within about 90 miles — open a listing for fees, access, and directions.
24 sites mapped near Dubuque
Browse by specimen type in Iowa — each link opens the full state directory for that category.
Where to find agates and jasper in the U.S. — Lake Superior beaches, Ellensburg blue, Wyoming Sweetwater fields, Texas Terlingua, Mojave desert beds, and colorful chalcedony shorelines.
Where to find geodes near you — Keokuk / Warsaw Formation crystals, Utah Dugway BLM beds, Indiana limestone, Tennessee plateau nodules, and more hollow quartz-lined collecting sites.
Trilobites, brachiopods, petrified wood, and other paleontological collecting on public land.
Placer gold, pyrite, copper minerals, and general ore-mineral localities open to casual collecting.
Mixed or specialty collecting — zeolites, fluorescent minerals, thundereggs, and unique regional finds.
Dubuque is a practical launch point for day trips to natural rockhounding sites in Iowa. Within about 90 miles you will find 24 mapped destinations in our directory, starting with Dubuque about 5.3 mi from the city center.
The mix spans agate & jasper, geodes, fossils, gold & minerals, other — related terms searchers use include creek gravel collecting, desert washes, road cuts, and field collecting.
Every card on this page is a verified directory entry in Iowa with map coordinates. We measure straight-line distance from the Dubuque city center — not driving time. A creek rockhounding site 12 miles away on forest roads can take longer than a river access point 20 miles away on a highway.
Field collecting near Dubuque includes informal gravel bars, dry washes, quarry faces, and developed park collecting areas. Rules, fees, and seasonal access differ by land manager. Never assume collecting is allowed without checking the listing and posted signs the day you visit.
Field conditions near Dubuque change after rain, snowmelt, and summer heat. Unstable slopes, heat exhaustion, loose rock, and flash floods are real risks at creek and quarry rockhounding sites — most sites have no supervision. Check weather and local advisories before you start digging.
We publish original planning copy, safety tips, and last-updated dates on each listing. See our editorial policy for sourcing standards, or contact us if access or conditions have changed.
Near Dubuque, Iowa, our directory lists 24 natural rockhounding sites within about 90 miles — mainly 4 agate & jaspers, 1 geodes, 15 fossilss, and 1 gold & minerals. Each listing links to directions, fee notes, and safety context. Use near me on your phone for live distance sorting from your location.
This page shows 24 mapped rockhounding collecting sites within about 90 miles of Dubuque. The full Iowa directory may list additional holes farther out or awaiting coordinates. Counts update as we verify new listings.
The closest mapped spot to Dubuque is Dubuque (5.3 mi straight-line). Open that listing for driving directions, access notes, and current fee information — unofficial holes can change without notice.
24 have variable or unverified fees. Open each spot page for current fee details.
Near Dubuque, documented specimen types include agate & jaspers, geodes, fossilss, gold & minerals, others. A rockhounding site is a natural outcrop, wash, or creek gravel bar — not a fee dig or shop. Filter by type on the Iowa state page or open each card for specimen and access details.
Late spring through early fall is the usual field season near Dubuque, but snowmelt, drought, and weekend crowds change conditions week to week. Check each listing before you drive — storms can make washes and creek banks unsafe.
Field collecting near Dubuque carries real risks: unstable slopes, heat, loose rock, and no rangers at most unofficial sites. Check weather and posted warnings the day you visit. Read our rockhounding safety basics guide and each listing's safety section before you dig.
Listing data last updated across spots on this page.