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Burlington to Keokuk. The oldest pool on the river: flathead and channel cat water with white bass on every point. The river tops out around 43 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. What the data behind the map says about each species, season by season:
Mississippi River Pool 19 (Keokuk) maps at 13,590 acres behind 82.1 miles of shoreline, with 4 islands in the mix. That shoreline is heavily fingered (development index 5) — bays, points and pockets everywhere, which multiplies the fishable edge. 36% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 30.4 mi, about 9.1 mi across. Hancock County claims this one. Its nearest charted neighbour, Carthage Reservoir, is 12 mi to the southeast.
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 Lock & Dam 18 tailrace first on the milk run — a creek channel near 16 ft that grades prime for summer. 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 | Tailout eddy (mile 38.4) (10 ft) | |
| Summer | 8 to 25 ft | night & dusk | Lock & Dam 18 tailrace (16 ft) | |
| Fall | 10 to 30 ft | dusk | Lock & Dam 18 tailrace (16 ft) | |
| Winter | 20 to 40 ft | midday | Main-channel hole (mile 0.6) (28 ft) |
Early season flathead catfish use the shallows, holding in 5 to 20 ft. Summer is an 8 to 30 ft game here, winter a 13 to 43 ft one. The chart's best answer is Tailout eddy (mile 38.4) — eddy pocket, 10 ft, prime for spring. Best bite is after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | night & dusk | Tailout eddy (mile 38.4) (10 ft) | |
| Summer | 8 to 30 ft | night & dusk | Tailout eddy (mile 38.4) (10 ft) | |
| Fall | 10 to 35 ft | night & dusk | Tailout eddy (mile 38.4) (10 ft) | |
| Winter | 13 to 43 ft | midday | Slackwater eddy (mile 31.0) (24 ft) |
Start shallow in spring: white bass sit in 2 to 12 ft that time of year. Warm water sends them out to 8 to 25 ft; cold water stacks them in 15 to 40 ft. Top water on the chart: Channel bar / point (mile 22.9), a point in the 25 ft range, prime in fall. Fish it in early morning and the evening and you'll meet the bite. Throw a slab spoon or a small topwater (schooling fish) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Dam tailrace (10 ft) | Curly-tail jig (white), Small lipless crank |
| Summer | 8 to 25 ft | dawn & dusk | Dam tailrace (10 ft) | Slab spoon, Small topwater (schooling fish) |
| Fall | 6 to 25 ft | dawn & dusk | Channel bar / point (mile 22.9) (25 ft) | Jigging spoon, Blade bait |
| Winter | 15 to 40 ft | midday | Lock & Dam 18 tailrace (16 ft) | Jigging spoon (deep), Blade bait |
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 Montrose lily flats first on the milk run — a weed flat near 10 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 | Montrose lily flats (10 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Montrose lily flats (10 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Lock & Dam 18 tailrace (16 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Lock & Dam 18 tailrace (16 ft) | Blade bait, Jigging spoon |
Spring crappie on Mississippi River Pool 19 (Keokuk) 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 Lock & Dam 18 tailrace — creek channel, 16 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 | Montrose lily flats (10 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Lock & Dam 18 tailrace (16 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Lock & Dam 18 tailrace (16 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Lock & Dam 18 tailrace (16 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Spring bluegill on Mississippi River Pool 19 (Keokuk) 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 Montrose lily flats first on the milk run — a weed flat near 10 ft that grades prime for summer. 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 | Montrose lily flats (10 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Montrose lily flats (10 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Montrose lily flats (10 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Tailout eddy (mile 38.4) (10 ft) | Tungsten ice jig + plastic, Tiny spoon |
Mississippi River Pool 19 (Keokuk) also holds walleye (15 to 35 ft in summer), sauger (10 to 30 ft in summer), freshwater drum (8 to 30 ft in summer), common carp (3 to 15 ft in summer), longnose gar (1 to 12 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Mississippi River Pool 19 (Keokuk) carries 26 mapped structure features, topping out (or rather bottoming out) at Main-channel hole (mile 9.9), about 31 ft down.
Access data: Iowa DNR — Boat Ramps. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Iowa waters are set by the Iowa DNR — and special regulations can apply to Mississippi River Pool 19 (Keokuk) specifically, so confirm the current rules before you fish.
Check the official Iowa fishing regulations →
Mississippi River Pool 19 (Keokuk) is about 43 ft (13 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target channel catfish, flathead catfish, white bass, largemouth bass, crappie, bluegill, walleye, sauger, freshwater drum, common carp, longnose gar on Mississippi River Pool 19 (Keokuk).
Lock & Dam 18 tailrace is the top-rated area: a creek channel in about 16 ft of water that rates prime for channel catfish in summer. The map above holds the full rated-spot list for every species and season.
For channel catfish, the summer bite is best in after dark 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.
Fishing on Mississippi River Pool 19 (Keokuk) is regulated by the Iowa DNR. Check the official Iowa regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
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See how Mississippi River Pool 19 (Keokuk) stacks up: best largemouth bass lakes in Iowa · best walleye lakes in Iowa · best white bass lakes in Iowa · best crappie lakes in Iowa
Browse all Iowa fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.