The Clear Fork is a tributary of the Mohican River and one of only three Ohio streams in a dedicated brown trout stocking program, with the Ohio Division of Wildlife stocking approximately 7,400 brown trout annually above Pleasant Hill Reservoir. The river splits naturally into two distinct characters — the Upper Clear Fork above the reservoir running mostly through private land with the program's biggest holdover browns, and the Lower Clear Fork flowing through Mohican State Park with excellent public access and spring rainbow trout stocking. Together they make the Clear Fork one of the most reliable trout destinations in central Ohio.
May into early June brings strong Sulphur hatches throughout the river. Mid-June through July is excellent for Light Cahill and Caddis activity, particularly through the Mohican State Park section. Midge fishing remains productive through the colder months on the tailwater section below Pleasant Hill Dam. October brings freshly stocked brown trout into the Upper Clear Fork ahead of the colder months.
Brown trout are stocked annually above Pleasant Hill Reservoir as fingerlings and yearlings, with some fish growing past 20 inches in the lightly-pressured Upper Clear Fork. The Lower Clear Fork through Mohican State Park is stocked each spring with catchable rainbow trout, alongside resident smallmouth bass, panfish, and the occasional muskie for anglers willing to target them.
Mohican State Park provides the best public access by far, with developed trails and pull-offs along the Lower Clear Fork including the covered bridge near the Class B Campground. The Upper Clear Fork above Pleasant Hill Reservoir runs mostly through private land, with the main public access at bridge crossings near Butler and Bellville. Special regulation water near Bellville-Butler requires artificial flies and lures only with a one-trout, 10-inch minimum creel limit. Ohio fishing license required for anglers 16 and older.
Streamflow data is pulled in real time from the USGS National Water Information System. The Lower Clear Fork below Pleasant Hill Dam benefits from tailwater releases that moderate flows and temperature compared to the rainfall-driven Upper Clear Fork, making the lower section more consistently fishable through summer.