Rockhounding in Daviess County, Missouri

Daviess County

Gallatin sits on the Grand River in glaciated Daviess County, and the river gravels here are a documented source of petrified wood, agate, jasper, and chalcedony reworked from glacial drift. It gives collectors a defined river-access point within the broader northwestern Missouri agate country. Petrified wood is the standout find, with pieces showing clear cell structure.

Agate, Chalcedony, Jasper, Petrified Wood

Daviess 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.

Lake Superior Agate, Jasper, Fossils, Petrified Wood