Where to Find Stromatoporioids in the United States
1 mapped stromatoporioids spots across 1 U.S. states. Stromatoporioids 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 stromatoporioids across the United States, with 1 mapped spots
Top states for stromatoporioids
States ranked by number of stromatoporioids spots in our database. States in bold link to a focused stromatoporioids-in-state list.
Every stromatoporioids spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Fremont County200 Street | Fremont County |
| 40.7511, -95.6772 | Public |
Stromatoporioids rockhounding FAQ
Where is the best place to find stromatoporioids in the U.S.?+
Iowa have the highest concentrations of stromatoporioids in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many stromatoporioids rockhounding spots does RockHoundR track?+
1 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect stromatoporioids on public land?+
Casual hand collecting of common rocks and minerals like stromatoporioids 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 stromatoporioids in the field?+
Field identification of stromatoporioids 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 stromatoporioids on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
