This March members of the ISAS Central Offices (Madeleine Evans & Adam Tufano) met up with Western Illinois Field Station crew (Rob Hickson & Bob Monroe) to survey creek beds adjacent to archaeological sites in Jersey County.
Instead of searching for artifacts they were looking for local chert sources. Chert is the sedimentary rock used to make the stone tool assemblages found on prehistoric sites. Tracking these types of raw materials helps archaeologists to better understand how ancient people in the region used these resources to produce the tools they needed. Rock on, guys!