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Fishing Lake Iatt: what the data says
5,300-acre lake near Georgetown. A Grant Parish lake with flooded timber and creek channels, good for bass and winter crappie. The lake tops out around 40 ft. The chart is a model: real shoreline, published maximum depth, interpolated in between. A planning tool, never a navigation product. What the data behind the map says about each species, season by season:
The drawn water covers 6,624 acres wrapped in 84.4 miles of bank, broken up by 3 islands. That shoreline is heavily fingered (development index 7.4) — bays, points and pockets everywhere, which multiplies the fishable edge. About 76% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone.
Largemouth Bass fishing at Lake Iatt
Early season largemouth bass use the shallows, holding in 2 to 10 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 15 to 35 ft. Put Shallow bay flat first on the milk run — a weed flat near 5 ft that grades prime for spring. In summer the feeding windows fall in early morning and the evening. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (5 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Main-lake point (10 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (10 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Old creek channel (20 ft) | Blade bait, Jigging spoon |
Crappie fishing at Lake Iatt
Spring crappie on Lake Iatt hold shallow, usually 2 to 8 ft. By summer they slide out to 10 to 25 ft, and by winter most fish are in 15 to 35 ft. The chart's best answer is Old creek channel — creek channel, 20 ft, prime for fall. Prime time lands in early morning and the evening. The summer box starts with a jig trolled/spider-rigged or a small crankbait (trolled).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (5 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Old creek channel (20 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Old creek channel (20 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Deep basin (34 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Bluegill fishing at Lake Iatt
Spring bluegill on Lake Iatt 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. Put Shallow bay flat first on the milk run — a weed flat near 5 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a small sponge spider (fly) or a micro tube jig.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (5 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (5 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Shallow bay flat (5 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Feeding flat (9 ft) | Tungsten ice jig + plastic, Tiny spoon |
Channel Catfish fishing at Lake Iatt
Early season channel catfish use the shallows, holding in 3 to 12 ft. Expect a summer slide to 8 to 25 ft, then a winter hold in 20 to 40 ft. Put Creek inflow first on the milk run — a inflow / creek mouth near 4 ft that grades prime for spring. In summer the feeding windows fall in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Creek inflow (4 ft) | |
| Summer | 8 to 25 ft | night & dusk | Old creek channel (20 ft) | |
| Fall | 10 to 30 ft | dusk | Old creek channel (20 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (34 ft) |
Notable structure
- Deep basin: deep basin, around 34 ft
- Old creek channel: creek channel, around 20 ft
- Main-lake point: point, around 10 ft
- Secondary point: point, around 10 ft
- Feeding flat: feeding flat, around 9 ft
- Rock reef: rock pile, around 5 ft
- Sharp break: drop-off, around 5 ft
- Shallow bay flat: weed flat, around 5 ft
- Back-bay flat: weed flat, around 5 ft
- Sharp break: drop-off, around 5 ft
- Creek inflow: inflow / creek mouth, around 4 ft
- Creek inflow: inflow / creek mouth, around 4 ft
- Rock reef: rock pile, around 2 ft
- Weed flat: weed flat, around 2 ft
Lake Iatt fishing regulations
Season dates, license requirements, and size and bag limits for Louisiana waters are set by the Louisiana Department of Wildlife and Fisheries — and special regulations can apply to Lake Iatt specifically, so confirm the current rules before you fish.
Check the official Louisiana fishing regulations →
Common questions
How deep is Lake Iatt?
Lake Iatt is about 40 ft (12 m) deep 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 Lake Iatt?
Anglers target largemouth bass, crappie, bluegill, channel catfish on Lake Iatt.
Where is the best fishing spot on Lake Iatt?
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 Lake Iatt?
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.
What are the fishing regulations for Lake Iatt?
Fishing on Lake Iatt is regulated by the Louisiana Department of Wildlife and Fisheries. Check the official Louisiana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Nearby waters
Kincaid Lake 24 mi · Saline Lake 26 mi · Black Lake 32 mi · Grand Bayou Reservoir 45 mi · Caney Lake 45 mi · Vernon Lake 49 mi · Anacoco Lake 54 mi · Kepler Creek Lake 57 mi · Lake Chicot 60 mi · Lake Concordia 68 mi · Toledo Bend Reservoir 68 mi, TX · Lake Bistineau 71 mi
See how Lake Iatt stacks up: best largemouth bass lakes in Louisiana · best crappie lakes in Louisiana · best bluegill lakes in Louisiana · best channel catfish lakes in Louisiana
Browse all Louisiana fishing maps or see every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.