
Old Quarry (riverside)
Old Quarry (Riverside) is a documented mineral occurrence near CA. Reported specimens include Axinite. Verify land access and collecting rules before visiting.
View details24 rockhounding collecting sites within about 100 miles of Riverside, California.
This page lists 24 natural rockhounding sites near Riverside, California, sorted by distance within about 100 miles.
Near Riverside, California, our directory maps 24 natural rockhounding sites within about 100 miles of the city center — including 8 fossilss, 8 gold & mineralss, and 8 others. The closest mapped spot is Old Quarry (riverside) (3.4 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 | Riverside, California |
|---|---|
| Search radius | About 100 miles |
| Mapped spots | 24 |
| Closest listing | Old Quarry (riverside) (3.4 mi) |
| Specimen types | Fossils (8), Gold & Minerals (8), Other (8) |
| Typical fees | 24 varies |
24 rockhounding collecting sites in California, sorted by distance from the city center. For live GPS sorting, use rockhounding sites near me.

Old Quarry (Riverside) is a documented mineral occurrence near CA. Reported specimens include Axinite. Verify land access and collecting rules before visiting.
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Area Near Jenson Quarry is a documented mineral occurrence near CA. Reported specimens include Hornblende. Verify land access and collecting rules before visiting.
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Bluebird-Pink Lady and Corky Deps. is a mineral prospect in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Cassiterite, Pyrolusite, Wolframite.
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Fossil collection site in the Bedford Canyon, Orange County, California. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Corona Lead-Zinc Mine is a historic mining site in Riverside, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Silver, Sphalerite, Stibnite.
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Bob Cat Lode is a mineral prospect in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Azurite, Chrysocolla, Copper, Gold, Malachite, Sphalerite.
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Old Quarry Nos. 1 and 2 is a mineral prospect in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Gold, Limestone, Silver.
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California-Hercules Mine is a mineral prospect in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Silver, Sphalerite.
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Califrnia-Hercules Millsite is a historic mining site in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Silver, Sphalerite.
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Sentinal Oak is a mineral prospect in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Gold, Silver, Sphalerite.
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Blue Light Mine is a historic mining site in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Gold, Silver, Sphalerite.
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Wilhunt is a historic mining site in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Galena, Gold, Silver, Sphalerite, Stibnite.
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Yaeger is a known mineral occurrence in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Azurite, Chrysocolla, Copper, Galena, Gold, Malachite.
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Yeager Mines is a mineral prospect in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Azurite, Chrysocolla, Copper, Galena, Gold, Malachite.
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Fossil collection site in the Ladd, Orange County, California. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Pauper's Dream and Quidunc is a known mineral occurrence in San Bernardino, California, documented by the USGS Mineral Resources Data System. Reported specimens include Azurite, Chrysocolla, Copper, Gold, Malachite.
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Los Pinos is a mineral prospect in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Gold.
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Fossil collection site in the Vaqueros, San Bernardino County, California. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Fossil collection site in the "Topanga", Orange County, California. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Fossil collection site in the Puente, Orange County, California. Environment: offshore. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Joker and Catherine Prospect is a mineral prospect in Orange, California, documented by the USGS Mineral Resources Data System. Reported specimens include Azurite, Chrysocolla, Copper, Gold, Malachite, Sphalerite.
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Fossil collection site in the Capistrano, Orange County, California. Environment: shoreface. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Fossil collection site in the Vaqueros, Orange County, California. Environment: marine indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
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Fossil collection site in the Monterey, Orange County, California. Environment: coastal indet.. Source: Paleobiology Database (PBDB), CC BY 4.0.
View detailsBrowse by specimen type in California — each link opens the full state directory for that category.

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.
Riverside is a practical launch point for day trips to natural rockhounding sites in California. Within about 100 miles you will find 24 mapped destinations in our directory, starting with Old Quarry (riverside) about 3.4 mi from the city center.
The mix spans 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 California with map coordinates. We measure straight-line distance from the Riverside 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 Riverside 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 Riverside 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 Riverside, California, our directory lists 24 natural rockhounding sites within about 100 miles — mainly 8 fossilss, 8 gold & mineralss, and 8 others. 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 100 miles of Riverside. The full California directory may list additional holes farther out or awaiting coordinates. Counts update as we verify new listings.
The closest mapped spot to Riverside is Old Quarry (riverside) (3.4 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 Riverside, documented specimen types include fossilss, gold & mineralss, others. A rockhounding site is a natural outcrop, wash, or creek gravel bar — not a fee dig or shop. Filter by type on the California state page or open each card for specimen and access details.
Late spring through early fall is the usual field season near Riverside, 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 Riverside 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.