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Fishing Twelve Mile Creek Lake: what the data says
635-acre lake near Creston. The lake tops out around 40 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
Largemouth Bass fishing at Twelve Mile Creek Lake
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 5 ft of water that rates prime for largemouth bass in spring. In summer the feeding windows fall in early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Blade bait, Jigging spoon |
Walleye fishing at Twelve Mile Creek Lake
Spring walleye on Twelve Mile Creek Lake hold shallow, usually 4 to 15 ft. They move out to 15 to 35 ft in summer and finish the year down in 20 to 40 ft. Deep basin is the standout, a deep basin at roughly 36 ft, rated prime for winter walleye. 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 | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Crappie fishing at Twelve Mile Creek Lake
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. By summer they slide out to 10 to 25 ft, and by winter most fish are in 15 to 35 ft. The spot to know is Deep basin, a deep basin in about 36 ft of water that rates prime for crappie 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 | 10 to 25 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Twelve Mile Creek Lake
Spring bluegill on Twelve Mile Creek Lake hold shallow, usually 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 10 to 25 ft. The spot to know is Shallow bay flat, a weed flat in about 5 ft of water that rates prime for bluegill in spring. Plan around early morning and the evening in the warm months. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Channel Catfish fishing at Twelve Mile Creek Lake
In spring, channel catfish run shallow here, mostly 3 to 12 ft. They move out to 8 to 25 ft in summer and finish the year down in 20 to 40 ft. The spot to know is Deep basin, a deep basin in about 36 ft of water that rates prime for channel catfish in winter. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 10 to 30 ft | dusk | |
| Winter | 20 to 40 ft | midday |
Notable structure
- Deep basin: deep basin, around 36 ft
- Main-lake point: point, around 16 ft
- Break off the point: drop-off, around 11 ft
- Back-bay flat: weed flat, around 7 ft
- Secondary point: point, around 6 ft
- Shallow bay flat: weed flat, around 5 ft
Common questions
How deep is Twelve Mile Creek Lake?
Twelve Mile Creek Lake is about 40 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Twelve Mile Creek Lake?
Anglers target largemouth bass, walleye, crappie, bluegill, channel catfish on Twelve Mile Creek Lake.
Where is the best fishing spot on Twelve Mile Creek Lake?
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Twelve Mile Creek Lake?
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Three Mile Lake · Hurley Creek Pond · McKinley Lake · Summit Lake · Green Valley Lake · Thayer Lake
See how Twelve Mile Creek Lake stacks up: best largemouth bass lakes in Iowa · best walleye lakes in Iowa · best crappie lakes in Iowa · best bluegill lakes in Iowa
Browse all Iowa fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.