Where to Find Geodes in Illinois
10 mapped geodes rockhounding spots in Illinois, across 2 counties. Geodes are hollow nodules lined with crystals, most often quartz, calcite, or chalcedony.
Map of 10 geodes rockhounding spots in Illinois
Geodes by county in Illinois
Counties ranked by number of geodes spots in our database.
Every geodes spot in Illinois
Sorted by county. Coordinates open in Google Maps. Click a row for details.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Crystal Glen CreekNorth County Road 700 | Hancock County | 40.3714, -91.3755 | Public | |
| Dallas CityOak Street | Hancock County | 40.6308, -91.1664 | Public | |
| HamiltonSouth 9th Street | Hancock County | 40.3872, -91.3462 | Public | |
| Hamilton QuarrySouth 2nd Street | Hancock County | 40.3822, -91.3554 | Public | |
| Mississippi River (near Hamilton) | Hancock County | 40.3833, -91.3765 | Public | |
| NauvooNorth County Road 800 | Hancock County | 40.5218, -91.3516 | Public | |
| NiotaNorth Morman Springs Road | Hancock County | 40.6118, -91.3065 | Public | |
| Spillman CreekNorth County Road 1540 | Hancock County | 40.6163, -91.2030 | Public | |
| Tyson Creek | Hancock County | 40.5880, -91.2880 | Public | |
| McKee Creek | Pike County | 39.7381, -90.7391 | Public |
Geodes in Illinois FAQ
Where can I find geodes in Illinois?+
RockHoundR tracks 10 geodes spots in Illinois, spread across 2 counties. The strongest concentration is in Hancock County.
Is collecting geodes legal in Illinois?+
Casual hand collection of common rocks and minerals like geodes is allowed on most BLM and U.S. Forest Service land in Illinois, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always confirm rules before a trip.
What is the best geodes location in Illinois?+
Hancock County has the most geodes spots in our database for Illinois. The full county breakdown is below — different counties produce different qualities and varieties.
Other states for geodes
Hunt geodes in Illinois on the map
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