Where to Find Ammonites in the United States
1 mapped ammonites spots across 1 U.S. states. Ammonites is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Learn about ammonites: properties & identification →Map showing where to find ammonites across the United States, with 1 mapped spots
Top states for ammonites
States ranked by number of ammonites spots in our database. States in bold link to a focused ammonites-in-state list.
Every ammonites spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| LovellMedicine Wheel Passage | Big Horn County |
| 44.7977, -108.0474 | Public |
Ammonites rockhounding FAQ
Where is the best place to find ammonites in the U.S.?+
Wyoming have the highest concentrations of ammonites in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many ammonites 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 ammonites on public land?+
Casual hand collecting of common rocks and minerals like ammonites 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 ammonites in the field?+
Field identification of ammonites 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 ammonites on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
