Many east coasters have heard of brackish water estuaries…where rivers meet the sea. But, have you ever heard of a freshwater estuary? The National Estuarine Research Reserve (NERR) System actually has two freshwater estuaries…Old Woman Creek in Ohio and Lake Superior in Wisconsin. Freshwater estuaries do not contain salt water but rather, are combinations of river and lake water (large lakes). The river water and lake water are chemically different and the estuary tends to be driven by storm surges and seiches (shifting of lake water) rather than tides. Today’s destination is the Old Woman Creek NERR located on the southwestern shore of Lake Erie just east of Huron, Ohio. It was the first freshwater estuary adopted into the NERR System in 1980. Old Woman Creek NERR encompasses approximately 573 acres and includes critical spawning and nursery ground for many recreational and commercial fisheries including crappie, blue gill, and channel catfish. So, if you are taking a trip near Huron, Ohio stop in and visit the Old Woman Creek Reserve! For more information about freshwater estuaries visit the estuaries.gov website and to learn more about Old Woman Creek NERR visit them on their website.