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Fishing Sully Lake: what the data says
220-acre lake near Sully County. The lake tops out around 10 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Yellow Perch fishing at Sully Lake
In spring, yellow perch run shallow here, mostly 3 to 10 ft. Summer fish stay in 3 to 10 ft, and winter fish hold in 3 to 10 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring yellow perch. Best bite is early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 10 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 10 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 10 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 10 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Crappie fishing at Sully Lake
In spring, crappie run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 3 to 10 ft, and winter fish settle into 3 to 10 ft. If you only fish one area, make it Deep basin: a deep basin around 9 ft that scores prime in winter. Plan around early morning and the evening in the warm months. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 3 to 10 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 3 to 10 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 3 to 10 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Sully Lake
In spring, bluegill run shallow here, mostly 1 to 6 ft. By summer they slide out to 3 to 10 ft, and by winter most fish are in 3 to 10 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 3 to 10 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 10 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 10 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Northern Pike fishing at Sully Lake
In spring, northern pike run shallow here, mostly 2 to 8 ft. By summer they slide out to 3 to 10 ft, and by winter most fish are in 3 to 10 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 10 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 10 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 10 ft | midday | Tip-ups, Large jigging spoon |
Walleye fishing at Sully Lake
Start shallow in spring: walleye sit in 3 to 10 ft that time of year. Summer fish stay in 3 to 10 ft, and winter fish hold in 3 to 10 ft. The spot to know is Break off the point, a drop-off in about 5 ft of water that rates prime for walleye in fall. Best bite is the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 10 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 10 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 10 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 3 to 10 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Notable structure
- Deep basin: deep basin, around 9 ft
- Main-lake point: point, around 8 ft
- Secondary point: point, around 8 ft
- Break off the point: drop-off, around 5 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Sully Lake?
Sully Lake is about 10 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Sully Lake?
Anglers target walleye, northern pike, crappie, bluegill, yellow perch on Sully Lake.
Where is the best fishing spot on Sully Lake?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Sully Lake?
For yellow perch, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Missouri River (Oahe Tailrace) · Hurley Lake · Chapelle Lake · Byre Lake · Hayes Lake · Trail City Lake
See how Sully Lake stacks up: best walleye lakes in South Dakota · best northern pike lakes in South Dakota · best crappie lakes in South Dakota · best bluegill lakes in South Dakota
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