Platte River Michigan Fishing Conditions
The Platte River is one of Michigan's clearest rivers — spring-fed and cold, it flows 35 miles through Benzie County to Lake Michigan inside Sleeping Bear Dunes National Lakeshore. Brown trout and rainbow trout in the main river; a famous Coho salmon run in October. The clarity here is startling.
The Platte rises from springs near Honor and flows southwest through the national lakeshore before entering Lake Michigan near Platte Bay. The water is cold enough year-round to maintain trout, clear enough to polaroid-fish for individual animals, and contained enough to wade from bank to bank in most stretches. It is a technical river — the fish have good visibility and plenty of time to inspect a presentation before deciding.
Wild brown trout and planted rainbow trout share the river. The planted fish are often more willing, but the wild browns are the prize — longer, leaner, and with the coloration of genuine wild fish. The section near Haze Road and the campground above Honor is consistently productive dry fly water when hatches are on.
Coho Salmon
The Platte River is famous among salmon anglers for its October Coho run. The fish enter from Platte Bay in Lake Michigan and move upstream quickly through the short river. At peak the fish are visible throughout the lower river. The salmon are not in feeding mode but will take flies swung through pools and presented with persistence. The Platte salmon run is accessible, visible, and one of the most dramatic annual events on any Michigan river.
National Lakeshore Regulations
The lower Platte flows through Sleeping Bear Dunes National Lakeshore. Both NPS and Michigan DNR regulations apply. Some sections have special rules for salmon — check both agencies' current regulations before fishing the lower river during the fall run.