Geodes near St. Louis, MO
19 of the mapped rockhounding spots within 150 miles of St. Louis report geode. The closest is Arnold, about 18 miles out (22 min drive).
Geodes are hollow, roughly spherical rocks lined with crystals, most often quartz, amethyst, or calcite. They weather out of limestone and volcanic host rock and concentrate in creek gravels and hillside float.
Map of 19 geode collecting spots within 150 miles of St. Louis, Missouri
Closest geodes spots to St. Louis
- ArnoldJefferson County, Missouri18 mi · 22 min driveGeode, Dolomite, Marcasite
- Weber QuarrySaint Charles County, Missouri32 mi · 40 min driveGeode, Fluorite, Millerite
- McKee CreekPike County, Illinois82 mi · 1 hr 43 min driveGeode, Sphalerite
- Fabius RiverLewis County, Missouri120 mi · 2 hr 30 min driveGeode, Calcite, Malachite
- Crystal Glen CreekHancock County, Illinois136 mi · 2 hr 50 min driveGeode, Barite, Calcite
- Hamilton QuarryHancock County, Illinois136 mi · 2 hr 50 min driveGeode, Pyrite, Calcite
Types of geodes reported near St. Louis
Counts reflect how many spots in this radius mention each variety.
- Geode18
- Keokuk Geode1
Every geode spot within 150 miles of St. Louis
Sorted by distance from St. Louis. Tap a row for directions, access status, and nearby trips.
Geodes near St. Louis FAQ
Where can I find geodes near St. Louis?+
19 mapped spots within about 150 miles of St. Louis report geode. The closest is Arnold in Jefferson County County, roughly 18 miles away (22 min drive). The full list with coordinates is on this page.
Can I collect geodes on public land near St. Louis?+
19 of the 19 spots here sit on land mapped as publicly accessible. Casual hand collecting of common rocks and minerals is allowed on most BLM and Forest Service land with limits set by the local field office; national parks and most state parks are closed to collecting. Confirm current rules with the managing agency before a trip.
How do I know if a rock is a geode before cracking it open?+
Candidates are rounder and lighter than solid rocks of the same size, with a bumpy cauliflower surface. Shake one next to your ear: loose crystals sometimes rattle. The only sure test is opening it with a cross-peen hammer or a soil pipe cutter, which gives cleaner halves than a flat smash.
How far from St. Louis do I need to drive?+
The nearest geode spot is about 18 miles out, and the farthest on this list is 149 miles. Most fall inside a normal weekend day-trip radius.
Keep exploring from St. Louis
Geodes near other cities
Hunt geodes around St. Louis with the map in your pocket
RockHoundR shows these spots on an offline map with public land overlays, geology layers, weather, and a log for your finds.
