West Branch Delaware River

The West Branch of the Delaware is the water most Eastern anglers measure everything else against. It runs about 17 miles from Cannonsville Dam at Stilesville down to Junction Pool at Hancock, where it joins the East Branch to form the main-stem Delaware, and its cold comes straight off the bottom of Cannonsville Reservoir — a New York City water-supply impoundment. That bottom release is the whole fishery: through the dog days of a Catskills summer, when nearly every freestone in the region pushes into the 70s and shuts down, the West Branch below the dam can sit in the low 50s. Flows here are set by reservoir releases and interstate water rules under the Flexible Flow Management Program, not by the weather, so the river fishes cold and technical all summer long.

The trout are wild — browns first, with a strong contingent of wild rainbows — and decades of pressure on flat, gin-clear water have made them expert refusers. This is technical dry-fly water above all else: fish rise selectively, often to the smallest bug on the water, and leaders run 12 to 15 feet down to 5X and 6X. How the river fishes depends entirely on what's coming out of the dam. Around 375-475 CFS at Hale Eddy it's almost fully wadeable; at 600-800 CFS a drift boat becomes the better tool with 60-70% still wadeable; north of 1,500 CFS it's too big and pushy to wade safely. A low, warm-release year concentrates fish and anglers in the top few miles near Stilesville where the water stays coldest, while a cold, generous release spreads them the whole way to Hancock.

The hatches are the draw: Hendricksons in April, an extended sulphur season from May into September, Green Drakes in late May and June, blizzard Trico spinner falls in late summer, and Isonychia into fall. It gets crowded — this is a destination fishery within three hours of New York City, and a prime hatch evening on the Hale Eddy flats can feel like a parade of drift boats. Down low the river swings onto the NY-PA state line and becomes boundary water. Full-service fly shops, lodges, and Orvis-endorsed guides cluster around Deposit and Hancock, and their daily reports are genuinely useful for reading the release schedule before you commit to the drive.