Rock River Archaeology Society Present: Is The Stream, River Or Lake Healthy? March 18

Rock River Archaeology Society Present: Is The Stream, River Or Lake Healthy? March 18 RIGHT: Bruce Markert of the Rock River Archaeology Society (RRAS). Markert will give a free presentation called “Ecological Effect of Prehistoric Fly Larvae and the Health of Streams’ and Rivers’ Water Quality” at the RRAS monthly meeting on March 18. (submitted) A program called “Ecological Effect