Where to Find Coldwater Agate in the United States
3 mapped coldwater agate spots across 1 U.S. states. Coldwater Agate 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 coldwater agate across the United States, with 3 mapped spots
Top states for coldwater agate
States ranked by number of coldwater agate spots in our database. States in bold link to a focused coldwater agate-in-state list.
Every coldwater agate spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Benton County61st Street | Benton County |
| 42.1359, -92.1265 | Public |
| Black Hawk CountyNorth Elk Run Road | Black Hawk County |
| 42.5218, -92.2549 | Public |
| Bremer County160th Street | Bremer County |
| 42.8225, -92.3273 | Public |
Coldwater Agate rockhounding FAQ
Where is the best place to find coldwater agate in the U.S.?+
Iowa have the highest concentrations of coldwater agate in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many coldwater agate rockhounding spots does RockHoundR track?+
3 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect coldwater agate on public land?+
Casual hand collecting of common rocks and minerals like coldwater agate 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 coldwater agate in the field?+
Field identification of coldwater agate 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 coldwater agate on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
