Illinois Trace Fossil Burrow Location Guide

Trace Fossil Burrow is a realistic Illinois fossil profile built around tube or tunnel made by ancient invertebrates in soft sediment. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.