Fly fishing in Connecticut · Intermediate · Best seasons: Spring, Summer, Fall
Target Species
Largemouth Bass, Walleye, Trout
About This Water
Housatonic impoundment with diverse fishing. Bass, walleye, and trout.
Fishing Recommendations
Welcome to the Housatonic River Valley. As your guide, I’m excited to break down Lake Zoar. Situated between the Stevenson Dam and the Shepaug Dam, Lake Zoar is actually a massive impoundment of the Housatonic River.
While many fly anglers bypass Zoar in favor of the Trout Management Areas upstream, those who understand this water know it as a powerhouse for warm-water species and a surprising destination for transitional river-run fish.
🎣 Location Overview
Lake Zoar is the fifth-largest lake in Connecticut, spanning roughly 900 acres. It is a "riverine" lake, meaning it retains a noticeable current in many sections, particularly in the upper reaches near the Shepaug Dam.
What makes it special is the diversity of habitat. You have deep channels, steep rocky drop-offs, expansive weed beds, and submerged timber. Because it is part of the Housatonic system, the biomass is incredible. The water clarity varies from stained to murky depending on rainfall, which actually plays to the fly angler's advantage by making fish less "leader shy" than in the crystal-clear reservoirs nearby.
🐟 Target Species & Behavior
Largemouth Bass
Zoar is a premier bass factory. The Largemouths here are bulky, feeding heavily on alewives, bluegill, and crayfish.
Behavior: They hold tight to the abundant weed lines and downed timber along the shoreline. In the heat of summer, they retreat to the deeper "docks with shadows" or the edges of the main river channel.
Walleye
The CT DEEP stocks Walleye here regularly. While traditionally targeted by gear anglers, they are a thrill on a fly rod.
Behavior: They are light-sensitive. During the day, they hold in 15–25 feet of water near rocky humps. At dawn, dusk, and overcast days, they move into the shallows (5–10 feet) to hunt baitfish.
Trout (Brown and Rainbow)
Trout in Zoar are "river escapees" from the Housatonic or the Shepaug River.
Behavior: You won't find them in the shallow, warm bays in mid-summer. They congregate in the cooler, oxygenated water near the northern end (Shepaug Dam) or near the mouths of cold-water tributaries like Pootatuck River during the spring and fall.
📅 Best Times to Fish
Spring (April – June): This is the prime window. Bass move shallow for the pre-spawn and spawn. Trout are active throughout the upper section of the lake before the water warms.
Summer (July – August): Focus on the "Low Light Window." The best fishing is from 5:00 AM to 9:00 AM and 7:00 PM until dark. Mid-day is tough due to heavy recreational boat traffic.
Fall (September – November): As water temperatures drop, the bass go on a feeding binge to prepare for winter. The Walleye move shallower and become much more accessible to fly fishers using sinking lines.
🪰 Recommended Flies & Techniques
For Bass (The "Meat and Potatoes")
Patterns:
Topwater: BoogleBugs (size 4), Dahlberg Divers, and Gamechangers (unweighted) for explosive surface strikes.
Subsurface: Clouser Minnows (Chartreuse/White), Feather Gamechangers, and Bass Bunnies.
Technique: Use a 7 or 8-weight rod. Use a "Chunk and Wind" method along the weed edges. For deeper fish, a sink-tip line is essential to keep your fly in the strike zone.
For Walleye (The "Deep Drag")
Patterns: Large, weighted streamers with plenty of flash. Black and Purple or Gold/Orange are local favorites.
Technique: You must get the fly to the bottom. Use a Full Sinking Line (Type 5 or 7). Use a slow, "strip-strip-pause" retrieve, letting the fly tick the rocks.
For Trout (The "Match the Hatch")
Patterns: Woolly Buggers (Olive/Black), Bead-head nymphs (Prince Nymphs, Pheasant Tails), and if you see rising fish near the Shepaug, #16-18 Blue Winged Olives.
Technique: Swing streamers in the current of the upper lake or dead-drift nymphs under an indicator near tributary mouths.
💡 Pro Tips & Local Knowledge
Work the "Flow": Because Zoar is an impoundment, First Light Power often fluctuates the water levels. When the water is "pulling" (current is moving), the fish become much more active. Use the First Light Power Generation Schedule to plan your trip.
The "Pootatuck Push": After a heavy rain in the spring, the mouth of the Pootatuck River (Sandy Hook side) dumps cold, oxygenated water and food into the lake. This is a magnet for Trout and Smallmouth Bass.
The Dock Game: In the summer, the recreational boaters create waves that oxygenate the water under the docks. Skip weighted streamers or poppers as far under the docks as possible. That’s where the 5lb Largemouths hide.
Night Fishing for Walleye: If you're brave, fish the rocky flats at night with a large black streamer. This is when the biggest Walleyes in the lake come shallow to feed.
⚠️ Important Information
Access
Jackson Cove Park (Oxford): Excellent boat launch and shore access (requires a permit for non-residents during summer, but usually open in the off-season).
Kettletown State Park (Southbury): Great for bank fishing and launching kayaks.
Under the Silver Bridge (Rt 133): A popular spot for shore anglers to access the river-like sections.
Regulations
License: A standard Connecticut Freshwater Fishing License is required.
Walleye: There is a 18-inch minimum length and a 2-fish per day limit (check current CT DEEP Angler’s Guide as these can change).
Trout: Standard statewide regulations apply unless you are in the river sections.
Special Considerations
Boat Traffic: During summer weekends, Zoar becomes a highway for jet skis and speedboats. For fly anglers in kayaks or small boats, weekdays or sunrise starts are mandatory for safety and sanity.
Algae Blooms: Late summer can see some blue-green algae; keep an eye on local health advisories.
Tight lines! Lake Zoar rewards the versatile fly angler who isn't afraid to swap a dry fly for a heavy streamer.
Bug Hatches & Matching Flies
Hatch
Type
Peak months
Time of day
Hook sizes
Matching flies
White Mayfly Ephoron leukon
mayfly
August, September
Evening/Dusk
#12-14
White Wulff #12-14, Ephoron Poly-Spinner #12-14, White Sparkle Dun #12-14