Where to Find Geodes in the United States
114 mapped geodes spots across 12 U.S. states. Geodes are hollow nodules lined with crystals, most often quartz, calcite, or chalcedony. The U.S. has several world-class geode regions — Keokuk along the Iowa-Illinois-Missouri border, Dugway in Utah, and several Mexican-border districts in Arizona and New Mexico.
Map showing where to find geodes across the United States, with 114 mapped spots
Top states for geodes
States ranked by number of geodes spots in our database. States in bold link to a focused geodes-in-state list.
Every geodes spot we track
Sorted by state and county. Coordinates open in Google Maps.
Geodes rockhounding FAQ
Where is the best place to find geodes in the U.S.?+
Iowa, Kentucky, Illinois have the highest concentrations of geodes in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many geodes rockhounding spots does RockHoundR track?+
114 mapped spots across 12 states. The app keeps these on a map alongside your private finds.
Can I legally collect geodes on public land?+
Casual hand collecting of common rocks and minerals like geodes 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 geodes in the field?+
Field identification of geodes 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 geodes on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
