Where to Find Lake Superior Agate in Missouri

Missouri has 5 mapped collecting spots that report lake superior agate, spread across 5 counties. The largest share sits in Daviess County County with 1 spot. 5 of the spots are on land mapped as publicly accessible.

Standout lake superior agate spots in Missouri

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

Daviess County
Daviess County County
Daviess County lies in the glaciated plains of northern Missouri, where Pleistocene ice sheets carried Lake Superior agates south from the Great Lakes basin and dropped them in glacial drift and stream gravels. Collectors work the area's creeks and the Grand River gravels for banded fortification agate, jasper, petrified wood, and fossils. The agates are tumble-rounded and frost-pitted, distinct from the local sedimentary chert.
Gentry County
Gentry County County
Gentry County in far northwestern Missouri lies squarely in glacial-drift country, where ice-rafted Lake Superior agates, jasper, and petrified wood are scattered through till and reworked into the area's stream gravels. It is one of the recognized northwest Missouri counties for agate hunting, alongside Daviess, Grundy, and Livingston. The agates carry the classic red-and-white fortification banding of the Lake Superior type.
Grundy County
Grundy County County
Grundy County rounds out the cluster of glaciated northern Missouri counties that yield ice-transported Lake Superior agates, with mindat documenting Lake Superior agate from the county. Its creeks and the Thompson and Weldon river gravels rework glacial drift, freeing agate, jasper, and petrified wood. The material is the same banded, tumble-rounded agate prized by Midwest collectors.

Best counties for lake superior agate in Missouri

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

Daviess County1 spot
Gentry County1 spot
Grundy County1 spot
Lincoln County1 spot
Livingston County1 spot

Every lake superior agate spot we track in Missouri

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Daviess County215th Street	Daviess County	Lake Superior Agate Jasper Fossils Petrified Wood	39.9653, -93.9975	Public
Gentry County	Gentry County	Lake Superior Agate Jasper Fossils Petrified Wood	40.2077, -94.3754	Public
Grundy County	Grundy County	Lake Superior Agate Jasper Fossils Petrified Wood	40.1196, -93.5296	Public
Old MonroeEast Sycamore Road	Lincoln County	Lake Superior Agate Garnet Staurolite	38.9307, -90.7431	Public
Livingston County	Livingston County	Lake Superior Agate Jasper Fossils Petrified Wood	39.7545, -93.5739	Public

Before you go

Read the lake superior agate identification guide so you know what a keeper looks like in the field: Lake Superior Agate in the encyclopedia.

Lake Superior Agate in Missouri FAQ

Where can you find lake superior agate in Missouri?+

The mapped spots concentrate in Daviess County County, Gentry County County, and Grundy County County. Every spot on this page appears on the map above with coordinates and access notes.

How many lake superior agate spots are mapped in Missouri?+

5 spots across 5 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 lake superior agate in Missouri?+

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. 5 of the 5 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find lake superior agate

More minerals to hunt in Missouri

Hunt lake superior agate in Missouri 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.