Cisco (Tullibee)
Duck Lake runs 15 ft of clarity — so finesse presentations and natural colors on light line tend to out-fish reaction baits.
- Because Duck Lake averages 15 ft of visibility (clear), so finesse presentations and natural colors on light line tend to out-fish reaction baits.
- Its oligotrophic nutrient level puts the summer weedline near 15–20 ft — that edge is the high-percentage zone to hold cisco (tullibee) through the warm months.
- With a max depth of 98 ft, Duck Lake is deep enough to stratify in summer, so coldwater fish hold near the thermocline while warmwater fish stay above it.
Season-by-season on Duck Lake
| Season | Where | Structure | How |
|---|---|---|---|
| Spring | deep/suspended | suspends in the cold basin | not commonly targeted |
| Summer | deep near thermocline | cold oxygenated layer | small jigs/flies where legal |
| Fall | shallow late fall | moves shallow to spawn | small spoons and jigs |
| Winter / Ice | 15–40 ft | suspended over the basin | tiny spoons and jigs — a fun ice target |
Cisco presence indicates a healthy, cold, oxygen-rich lake; sensitive to warming.