GoFossilHunting

State

Fossil sites in Illinois

Every fossil hunting site we've documented in Illinois, from pay-to-dig fossil parks to free public collecting localities and in-situ viewing destinations. Each entry includes directions, access policy, fossil types found, and the underlying geology.

A view of (part of) the Pine Hills Escarpment, in the LaRue-Pine Hills/Otter Pond Research Natural Area of the Shawnee National Forest
Photo: ZFT, CC BY-SA 4.0, via Wikimedia Commons

1 fossil site

Updated 4 August 2026

Part of our national guide to the best places to fossil hunt in the United States.