Where to Find Geodes in Iowa

Iowa has 13 mapped collecting spots that report geodes, spread across 9 counties. The largest share sits in Hardin County with 3 spots. 13 of the spots are on land mapped as publicly accessible.

Standout geode spots in Iowa

Hand-picked from the full list below, with the reason each one earns a trip.

Burlington (geodes)
Des Moines County
Burlington marks the transition between Iowa's two great rockhounding stories: the Keokuk geode belt to the south and the Lake Superior agate fields carried in by glaciers.
Steamboat River
Hardin County
The Iowa River around Steamboat Rock cuts through glacial drift and Mississippian bedrock, concentrating agate, chalcedony, and clear to smoky quartz in its gravel bars.

Best counties for geodes in Iowa

Ranked by the number of mapped geode spots. County links open the full rockhounding page for that county.

Every geode spot we track in Iowa

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Riverview Recreation AreaCedar Valley Lakes Trail	Black Hawk County	Geode	42.4766, -92.3008	Public
Brandon330th Street	Buchanan County	Geode Fossils	42.3164, -91.9902	Public
SheffieldQuail Avenue	Cerro Gordo County	Geode	42.9217, -93.1778	Public
Burlington (geodes)Starrs Cave Road	Des Moines County	Lake Superior Agate Quartz Geode	40.8521, -91.1493	Public
ChapinOlive Avenue	Franklin County	Geode	42.8543, -93.2203	Public
EldoraDole Drive	Hardin County	Geode	42.3631, -93.1175	Public
Steamboat RiverNorth 10th Street	Hardin County	Geode	42.4098, -93.0726	Public
Union305th Street	Hardin County	Geode	42.2540, -93.0581	Public
Mount Pleasant	Henry County	Chert Geode	40.9529, -91.5673	Public
Skunk RiverCockleburr Lane	Henry County	Geode Petrified Coral Limonite	40.8987, -91.5565	Public
Donnellson180th Avenue	Lee County	Geode	40.6275, -91.5698	Public
Hamilton (west)Carroll Street	Lee County	Geode	40.3837, -91.3747	Public
Farmington (geodes)State Highway 81	Van Buren County	Geode	40.6375, -91.7527	Public

Before you go

Read the geodes identification guide so you know what a keeper looks like in the field: Geode in the encyclopedia.

Geodes in Iowa FAQ

Where can you find geodes in Iowa?+

The mapped spots concentrate in Hardin County, Henry County, and Lee County. Every spot on this page appears on the map above with coordinates and access notes.

How many geode spots are mapped in Iowa?+

13 spots across 9 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 geodes in Iowa?+

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. 13 of the 13 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find geodes

More minerals to hunt in Iowa

Hunt geodes in Iowa 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.