Where to Find Geode in Illinois
Illinois has 10 mapped collecting spots that report geode, spread across 2 counties. The largest share sits in Hancock County County with 9 spots. 10 of the spots are on land mapped as publicly accessible.
Map of 10 geode collecting spots in Illinois
Best counties for geode in Illinois
Ranked by the number of mapped geode spots. County links open the full rockhounding page for that county.
- Hancock County9 spots
- Pike County1 spot
Every geode spot we track in Illinois
Sorted by county. Coordinates open in Google Maps.
| 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 |
Before you go
Read the geode identification guide so you know what a keeper looks like in the field: Geode in the encyclopedia.
Geode in Illinois FAQ
Where can you find geode in Illinois?+
The mapped spots concentrate in Hancock County County and Pike County County. Every spot on this page appears on the map above with coordinates and access notes.
How many geode spots are mapped in Illinois?+
10 spots across 2 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect geode in Illinois?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 10 of the 10 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find geode
More minerals to hunt in Illinois
Hunt geode in Illinois with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
