The Lynn River empties into Lake Erie at the town of Port Dover. The Lynn Valley Trail follows the river between Port Dover and the town of Simcoe, which is also located on the river.
The watershed stretches throughout Norfolk County and is one of few cold water tributaries feeding into the Eastern Lake Erie basin. Recently, a local group known as the "Friends of Silver Lake" have been advocating dam repair. This organization has set its sites on restoring an old gristmill dam that has impeded this watershed for years. Water quality both upstream and downstream have suffered greatly as a result. It is possible to kayak down the Lynn River and eventually into the outskirts of Port Dover.
Communities that are dependent on the Lynn River for their primary water supply include Bloomsburg, Lynnville, Nixon, Colborne, Renton, Simcoe, Hillcrest, Bill's Corners, Shand's Corners and Port Dover.