For Great Lakes kings and staging steelhead, you need two leaders: an indicator (float) leader of seven-and-a-half to nine feet of 8–12 lb tapered nylon down to a fluorocarbon tippet, and a short swing leader of two to six feet of stout mono off a sink tip. Kings take 12–20 lb tippet, steelhead 8–12 lb, and the most common beginner mistake isn’t fly choice, it’s building the leader so it breaks in the wrong place. Get the breaking strengths stepping down toward the fly and most of your lost-fish problems disappear.
How to Build the Indicator (Float) Leader
The indicator rig is the highest-percentage setup for tributary steelhead and staging fish, and it’s the one to learn first. Off a floating line, run a tapered nylon leader, seven-and-a-half to nine feet, testing 8–12 lb. Use nylon here on purpose: it floats and drifts naturally under an indicator, while fluorocarbon sinks and pulls the drift off line.
Add a tippet ring or micro barrel swivel below the leader body. This is your intended break point, and it’s where you connect two to four feet of tippet. Fluorocarbon is worth the money for the tippet, because it sinks and resists abrasion. Run 3X–4X (about 8 lb) for steelhead in clear water, 10–15 lb for kings, up to 20 lb in high, dirty water.
For weight, pinch a string of split shot on a short tag so it strips off on a snag, heavier up top and lighter toward the fly. Set the indicator about 1.5 times the water depth above the shot: a five-foot hole wants roughly seven-and-a-half feet of drop.
How to Build the Swing (Sink-Tip) Leader
The swing leader is short and stout, run off a Skagit or switch head with a sink tip (MOW/iMOW tips or level T-8 to T-14). Keep the whole leader two to six feet: one to two feet of 25–30 lb Maxima butt, looped to three to five feet of 10–15 lb tippet. Maxima Ultragreen in 12 lb is the guide default.
Nylon is the standard here, not a compromise. On a sunk, moving fly, steelhead are largely not leader-shy, so there’s little reason to buy fluorocarbon for the swing except in clear, slow water. For kings on the swing, step it up: 30 lb to 20 lb Maxima to about two feet of 12–15 lb fluorocarbon, throwing big intruders in sizes 4 to 1/0.
Nylon vs. Fluorocarbon, and the Rules That Change Your Rig
Fluorocarbon is less visible than nylon underwater, not invisible. It refracts less light, but its real advantages are abrasion resistance, sink rate, and low stretch. Nylon floats, stretches to protect knots and cushion hot fish, and costs less. Match the material to the job: nylon leader body, fluoro tippet where sink and abrasion help.
Before you tie the classic two-fly, split-shot rig, check the local rules, because it’s illegal on some of the best-known water. New York’s Salmon River and the Lake Ontario tributaries in Oswego and Cayuga counties require a single-point hook, prohibit weight below the hook and attractors (including pegged beads) above the fly, and cap weight-to-hook distance. Michigan’s fly and gear-restricted water is similarly strict. Pennsylvania’s Erie tributaries are lighter on terminal tackle but require a Lake Erie permit and close to night fishing after Labor Day. Confirm the current regulations with each state’s agency before you fish.
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Build two leaders for the fall run: a nylon indicator leader to a fluoro tippet for dead-drifting, and a short, stout mono swing leader for a sunk fly. Size tippet to the fish (12–20 lb kings, 8–12 lb steelhead), put the weakest point down at the fly, and confirm your rig is legal on the water you’re fishing. September is mostly a king window; steelhead numbers build into November.
For the full build, including the region-by-region rules that decide which rig is legal, see our in-depth guide: Leaders and Tippet for the Tributary Run.
FAQ
What pound test leader do I need for Great Lakes salmon?
For Chinook (kings), use 12–20 lb tippet, and step up toward 30 lb in high, dirty water. Drop as low as 3X (about 8.5 lb) only in gin-clear, low water when fish refuse anything heavier. Kings average 15–25 pounds and fight in current and wood, so under-gunning the tippet costs fish.
Should I use fluorocarbon or mono for steelhead leaders?
Use nylon (mono) for the indicator leader body because it floats and drifts naturally, and fluorocarbon for the tippet where its sink and abrasion resistance help. On the swing, nylon is the standard, since steelhead aren’t leader-shy on a moving fly. Reserve fluorocarbon for clear, slow water where fish get a long look.
Is the two-fly indicator rig legal on the Salmon River in New York?
No. New York’s Salmon River and the Lake Ontario tributaries in Oswego and Cayuga counties require a single-point hook, prohibit added attractors above the fly, and don’t allow weight below the hook, which outlaws the classic egg-and-dropper split-shot rig. Fish a single fly with weight legally placed above it, and confirm current rules with the NYSDEC guide.
How long should a swing leader be for steelhead?
Keep it short, two to six feet total off a sink tip. Use a shorter, heavier leader with fast-sinking tips and a longer, lighter one in clear, shallow water. A common build is one to two feet of 25–30 lb Maxima butt to three to five feet of 10–15 lb tippet.
When is the best time to fish for Great Lakes steelhead?
Steelhead numbers build through October and peak in late October and November on most systems. In September, Chinook are the main event and steelhead are just beginning to stage near river mouths. The best bite windows usually come in the first day or two after a rain, as the water drops and clears.
