Where to Find Petrified Coral in the United States

2 mapped petrified coral spots across 1 U.S. states. Petrified Coral is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.

Map showing where to find petrified coral across the United States, with 2 mapped spots

Top states for petrified coral

States ranked by number of petrified coral spots in our database. States in bold link to a focused petrified coral-in-state list.

Every petrified coral spot we track

Sorted by state and county. Coordinates open in Google Maps.

SpotCountyMineralsCoordinatesAccess
Skunk RiverCockleburr LaneHenry County40.8987, -91.5565Public
BellevueGreat River RoadJackson County42.2313, -90.4017Public

Petrified Coral rockhounding FAQ

Where is the best place to find petrified coral in the U.S.?+
Iowa have the highest concentrations of petrified coral in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many petrified coral rockhounding spots does RockHoundR track?+
2 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect petrified coral on public land?+
Casual hand collecting of common rocks and minerals like petrified coral is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always check with the managing agency before a trip.
How do I identify petrified coral in the field?+
Field identification of petrified coral comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.

Hunt petrified coral on the map

Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.

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