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Diamond Hunting in the United States

United States rockhounding atlas

Diamond Hunting in the United States

Quick answer

The atlas contains records that mention diamond or closely related field interests across multiple states. Use the counts and state links below to narrow the search, then read each record status before planning any collecting activity.

27relevant records
9states represented
4Ready
1Conditional
15Research only
4Protected / viewing

What does this guide cover?

Explore diamond hunting in the united states with 27 relevant atlas records across 9 states, separated by current status, map precision, and state context. The purpose is diamond location discovery while keeping map relevance separate from collecting authority. A material, park, mine, county, forest, or historic occurrence can be useful for research even when removal of material is not established.

How should I use these records?

Start with the status. Ready means current evidence supports the specifically modeled activity. Conditional means a stated condition must be resolved first. Research only provides location or geological context without established collecting authority. Protected / viewing is for lawful visitation or research rather than collecting. Then read the record reason, manager/context, map precision, and review date before planning a trip.

Which states have the most matching records?

StateMatching recordsReadyConditionalOpen guide
Arkansas1210State guide
New York420State guide
Rhode Island300State guide
Hawaii200State guide
New Jersey201State guide
Colorado100State guide
New Mexico100State guide
South Carolina110State guide
Wyoming100State guide

Examples from the atlas

Crater of Diamonds State Park — Diamond Search FieldArkansas · Pike · Readydiamonds, amethyst, garnet, jasper, agate, quartz and related field mineralsOpen in map
Crystal Grove Diamond Mine & CampgroundNew York · Montgomery · ReadyHerkimer diamond quartz crystals, druzy quartz and matrix specimensOpen in map
Diamond Hill Mine — Public Crystal DigSouth Carolina · Abbeville · Readynative/unsalted quartz crystals including amethyst, smoky quartz, skeletal quartz; associated beryl, garnet and epidoteOpen in map
Herkimer Diamond MinesNew York · Herkimer · ReadyHerkimer diamond quartz crystals and associated dolostone-pocket mineralsOpen in map
Sunset Beach Cape May DiamondsNew Jersey · Cape May · Conditionalrounded transparent quartz pebbles known as Cape May DiamondsOpen in map
Ace of Diamonds Mine & Campground — ClosedNew York · Herkimer · Protected / viewingHerkimer diamond quartzOpen in map
Crater of Diamonds State Park Outside Designated Search FieldArkansas · Pike · Protected / viewingdiamonds and other park mineralsOpen in map
Diamond Head State Monument — Geological Features ProtectedHawaii · Honolulu · Protected / viewingtuff, volcanic ash and geological featuresOpen in map
Diamond Hill Town Park — Collecting ProhibitedRhode Island · Providence · Protected / viewingquartz, mica and historic quarry/mineral geologyOpen in map
Colorado Diamond / Kelsey Lake ResearchColorado · Larimer · Research onlyDiamond occurrence and kimberlite contextOpen in map

Does finding this material in the atlas mean I can collect it?

No. The material match tells you why a record may be relevant to this topic. Collecting still depends on the exact property, manager, status, resource type, method, claims, closures, private rights, permits, and current posted instructions. Use the map to narrow possibilities, then use the record-specific evidence to decide what must be verified.

How precise are the map locations?

The atlas distinguishes verified exact public/official coordinates from named-place, county, regional, and statewide context. Context points are intentionally approximate and should not be treated as specimen coordinates. If a record is broad, use it to identify the correct manager or area, then navigate to a lawful public access point or official destination.

What should I verify before a field trip?

  • The exact property, land unit, manager, operator, or public access point.
  • The current status of closures, seasons, opening hours, fees, permits, claims, and private boundaries.
  • Whether the exact material and collecting method you intend to use are allowed.
  • Whether fossils, archaeological resources, historic mine features, caves, waterways, beaches, roadcuts, or protected natural features have additional restrictions.
  • Current safety conditions and any manager instructions posted after the atlas review date.

Common questions

Does a diamond map record mean collecting is allowed?

No. A map record shows geographic or activity relevance. Use the Ready, Conditional, Research-only, or Protected/viewing status and the record-specific reason to decide what must be verified before a field trip.

Why are some map positions approximate?

The atlas distinguishes exact public or official coordinates from county, regional, or named-place context. Approximate positions help with research without pretending that a broad occurrence or protected area is an exact collecting spot.

How current are the records?

Every record carries a review date. Rules, closures, ownership, claims, operator offers, and access can change after review, so current manager information should be checked before travel.

Can I use the directions links as proof of permission?

No. Directions are for lawful navigation and research. They do not override private-property boundaries, claims, permits, closures, protected-resource rules, or current posted instructions.

What is the safest way to plan a first visit?

Prefer a Ready record that matches the exact activity you want, read the status reason and map-precision note, confirm the current manager or operator information, and recheck site rules immediately before travel.

Continue exploring

Field-use reminder: geography helps you find the right place to research; only current site-specific authority can answer whether a particular collecting activity is allowed.