Rockhounding Hub

Location guides

Rockhounding Locations

Plan by state, then narrow to the ground you can actually collect.

Start with the broader state context, then drill into the exact collecting stop. That keeps land-status rules, access planning, and trip difficulty clearer than a flat directory ever could.

State-first exploration

State guide index

Use the state guide as the main planning layer, then open the specific stops that sit under it.

Arizona
State Guide

Arizona

A full Arizona state guide built around fire agate, quartz, petrified wood, and the land-status rules that actually control access.

Rockhounding in Arizona

Use our Arizona guide to plan around BLM rockhound areas, National Forest quartz stops, refuge limits, and protected or restricted ground.

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Arkansas
State Guide

Arkansas

State guide hub for Arkansas collecting locations currently covered on the site.

Rockhounding in Arkansas

Browse Arkansas collecting guides, including Crater of Diamonds State Park and Mount Ida.

Open state guide
California
State Guide

California

A full California state guide covering gem mining, coastal jade, desert agates, gold panning, and geode collecting across the state's diverse geology.

Rockhounding in California

Use our California guide to plan around Pala gem mining, Central Coast jade, Mojave desert agates, Sierra gold panning, and the access rules that vary by land type.

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Colorado
State Guide

Colorado

State guide hub for Colorado collecting locations currently covered on the site.

Rockhounding in Colorado

Browse our Colorado location coverage, including the Specimen Mountain area page.

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Georgia
State Guide

Georgia

State guide hub for Georgia collecting locations currently covered on the site.

Rockhounding in Georgia

Browse our Georgia collecting guide for Graves Mountain.

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Iowa
State Guide

Iowa

State guide hub for Iowa collecting locations currently covered on the site.

Rockhounding in Iowa

Browse our Iowa collecting guide for the Keokuk Geode Region.

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Michigan
State Guide

Michigan

State guide hub for Michigan collecting locations currently covered on the site.

Rockhounding in Michigan

Browse our Michigan collecting guide for Petoskey stone beaches and shoreline collecting.

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New Jersey
State Guide

New Jersey

State guide hub for New Jersey collecting locations currently covered on the site.

Rockhounding in New Jersey

Browse our New Jersey collecting guide for Franklin and Sterling Hill mineral sites.

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New York
State Guide

New York

State guide hub for New York collecting locations currently covered on the site.

Rockhounding in New York

Browse our New York collecting guide for Herkimer Diamond Mines.

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Oregon
State Guide

Oregon

A full Oregon state guide covering beach agates, thunder eggs, sunstone, obsidian, and the best collecting locations from coast to high desert.

Rockhounding in Oregon

Use our Oregon guide to plan around Pacific coast agate beaches, Central Oregon thunder egg sites, Lake County sunstone fields, and Glass Buttes obsidian.

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North Carolina
State Guide

North Carolina

State guide hub for North Carolina collecting locations currently covered on the site.

Rockhounding in North Carolina

Browse our North Carolina collecting guide for Emerald Hollow Mine.

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Utah
State Guide

Utah

State guide hub for Utah collecting locations currently covered on the site.

Rockhounding in Utah

Browse Utah collecting guides, including Topaz Mountain and Dugway Geode Beds.

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Field planning workflow

Three moves before you leave home

01

Pick a state guide

Use the state page to understand the bigger collecting picture and which districts are even worth planning around.

02

Verify the land rules

Confirm whether the stop sits on BLM, state park, private pay-dig, refuge, or another land status with different collection limits.

03

Choose the exact stop

Open the nested location page when you are ready for the real trip details: terrain, minerals, access friction, and map context.

Beginner shortcut

Start with the easy-access pages

These 7 pages lean toward simpler access, more predictable logistics, or a gentler first-day learning curve.

Crystal Hill AreaHolbrook-area Petrified Wood GroundCrater of Diamonds State ParkEmerald Hollow Mine
Jump to beginner sites

Field directory

All collecting locations

Specific collecting destinations nested under the state guides above.

Black Hills Rockhound Area

Arizona

Moderate

Black Hills Rockhound Area

BLM-managed fire agate area near Safford and one of the clearest public rockhounding stops in Arizona. Best treated as a deliberate desert field day rather than a quick roadside stop.

Fire AgateChalcedonyAgateJasper
Open field guide
Round Mountain Rockhound Area

Arizona

Moderate

Round Mountain Rockhound Area

Second major BLM fire agate area in Arizona's Safford district. More remote than Black Hills and better planned as its own collecting day.

Fire AgateChalcedonyAgateQuartz
Open field guide
Diamond Point

Arizona

Moderate

Diamond Point

Tonto National Forest quartz locality near Payson, known for doubly terminated crystals and a cooler-season alternative to lower-desert collecting.

QuartzQuartz CrystalsThunder Eggs
Open field guide
Crystal Hill Area

Arizona

Easy

Crystal Hill Area

Kofa National Wildlife Refuge crystal-collection area near Quartzsite. Best for surface searching loose quartz under refuge-specific rules.

QuartzQuartz CrystalsChalcedony
Open field guide
Sedona

Arizona

Moderate

Sedona

Famous red rock scenery near Sedona, with protected zones off-limits to collecting and surrounding Coconino National Forest and Verde Valley BLM land offering legal casual collecting for agate, jasper, and petrified wood.

AgateJasperChalcedonyPetrified Wood
Open field guide
Holbrook-area Petrified Wood Ground

Arizona

Easy

Holbrook-area Petrified Wood Ground

Legal petrified wood planning outside Petrified Forest National Park, focused on public land where casual collecting rules may apply and the park boundary remains a hard no-collect line.

Petrified WoodAgateJasper
Open field guide
Crater of Diamonds State Park

Arkansas

Easy

Crater of Diamonds State Park

The only public diamond mine in the world. Finders keepers policy — every visitor keeps whatever they find. Over 75,000 diamonds have been unearthed here since 1906, including the 40-carat Uncle Sam.

DiamondQuartzJasperAgate
Open field guide
Herkimer Diamond Mines

New York

Moderate

Herkimer Diamond Mines

World-famous for doubly-terminated quartz crystals with exceptional clarity. The dolomite host rock dates back nearly 500 million years. Tools and guidance provided on-site.

QuartzDolomiteCalcitePyrite
Open field guide
Topaz Mountain

Utah

Challenging

Topaz Mountain

A remote BLM site in the Thomas Range where topaz crystals weather out of rhyolite lava flows. Also produces red beryl, obsidian, and bixbyite. Free to collect, but bring water — there are no facilities.

TopazRed BerylObsidianBixbyite
Open field guide
Graves Mountain

Georgia

Moderate

Graves Mountain

Open during special dig days twice per year, this site produces museum-quality lazulite, rutile stars, and pyrophyllite. One of the most productive mineral localities in the southeastern US.

LazuliteRutilePyrophylliteKyanite+1 more
Open field guide
Oceanview Mine

California

Moderate

Oceanview Mine

A fee-dig site in the Pala district of San Diego County, historically one of the most important gem-producing areas in North America. Known for tourmaline, kunzite, and morganite.

TourmalineKunziteMorganiteQuartz
Open field guide
Emerald Hollow Mine

North Carolina

Easy

Emerald Hollow Mine

The only emerald mine in the US open to the public. Sluice mining and digging available. A good site for beginners and families, with on-site gem identification help.

EmeraldSapphireGarnetAquamarine
Open field guide
Dugway Geode Beds

Utah

Easy

Dugway Geode Beds

Free BLM collecting area west of Delta, Utah, producing rhyolite geodes lined with quartz, calcite, and occasionally pink chalcedony. No tools needed — geodes weather out of the soil.

QuartzCalciteChalcedony
Open field guide
Keokuk Geode Region

Iowa

Moderate

Keokuk Geode Region

Permission-first geode country across southeastern Iowa, where productive Warsaw Formation exposures are real but most worthwhile ground is private and Geode State Park itself is view-only.

GeodesQuartzCalciteChalcedony+1 more
Open field guide
Mount Ida Quartz Mines

Arkansas

Moderate

Mount Ida Quartz Mines

The quartz crystal capital of the world, with several fee-dig mines offering surface collecting and tailings digging. Known for clear, phantom, and tabular quartz crystals.

QuartzCalcite
Open field guide
Specimen Mountain Area

Colorado

Moderate

Specimen Mountain Area

Rocky Mountain National Park geology stop centered on closures, viewpoints, and no-collect rules rather than take-home material.

GraniteGneissSchistGlacial Deposits
Open field guide
Petoskey Stone Beaches

Michigan

Easy

Petoskey Stone Beaches

Lake Michigan’s shoreline near Petoskey and Charlevoix is the best place to find Michigan’s state stone — a fossilized Devonian coral with a distinctive hexagonal pattern. No tools needed.

Petoskey StoneCharlevoix StoneFossils
Open field guide
Franklin & Sterling Hill Mines

New Jersey

Easy

Franklin & Sterling Hill Mines

The fluorescent mineral capital of the world. Over 80 minerals found here glow under UV light. The on-site museum and collecting dumps offer a unique experience for any rockhound.

WillemiteCalciteFrankliniteZincite
Open field guide

Perfect for beginners

Easy-access collecting sites

The gentlest on-ramp into the directory: simpler access, clearer expectations, and less trip friction.

Crystal Hill Area

Arizona

Easy

Crystal Hill Area

Kofa National Wildlife Refuge crystal-collection area near Quartzsite. Best for surface searching loose quartz under refuge-specific rules.

QuartzQuartz CrystalsChalcedony
Open field guide
Holbrook-area Petrified Wood Ground

Arizona

Easy

Holbrook-area Petrified Wood Ground

Legal petrified wood planning outside Petrified Forest National Park, focused on public land where casual collecting rules may apply and the park boundary remains a hard no-collect line.

Petrified WoodAgateJasper
Open field guide
Crater of Diamonds State Park

Arkansas

Easy

Crater of Diamonds State Park

The only public diamond mine in the world. Finders keepers policy — every visitor keeps whatever they find. Over 75,000 diamonds have been unearthed here since 1906, including the 40-carat Uncle Sam.

DiamondQuartzJasperAgate
Open field guide
Emerald Hollow Mine

North Carolina

Easy

Emerald Hollow Mine

The only emerald mine in the US open to the public. Sluice mining and digging available. A good site for beginners and families, with on-site gem identification help.

EmeraldSapphireGarnetAquamarine
Open field guide
Dugway Geode Beds

Utah

Easy

Dugway Geode Beds

Free BLM collecting area west of Delta, Utah, producing rhyolite geodes lined with quartz, calcite, and occasionally pink chalcedony. No tools needed — geodes weather out of the soil.

QuartzCalciteChalcedony
Open field guide
Petoskey Stone Beaches

Michigan

Easy

Petoskey Stone Beaches

Lake Michigan’s shoreline near Petoskey and Charlevoix is the best place to find Michigan’s state stone — a fossilized Devonian coral with a distinctive hexagonal pattern. No tools needed.

Petoskey StoneCharlevoix StoneFossils
Open field guide
Franklin & Sterling Hill Mines

New Jersey

Easy

Franklin & Sterling Hill Mines

The fluorescent mineral capital of the world. Over 80 minerals found here glow under UV light. The on-site museum and collecting dumps offer a unique experience for any rockhound.

WillemiteCalciteFrankliniteZincite
Open field guide

Know where you want to go?

Learn to identify what you'll find when you get there.