Fishing a Bass Tournament on Pool 10 of the Mississippi River: A Season-by-Season Guide

Pool 10 of the Mississippi River offers bass anglers a unique challenge, combining the dynamic flow of a major river system with diverse habitats ranging from backwaters to main river channel drops. Whether you’re fishing a bass tournament in the spring or fall, understanding how to adjust your tactics to the seasonal conditions of the river can make all the difference in your success. Below is a comprehensive guide on how to fish the tournament circuit on Pool 10, with a focus on pre-spawn, spawn, post-spawn, summer, and fall periods.

Understanding Pool 10 of the Mississippi River

Pool 10 stretches from the dams at Guttenberg, Iowa, to the tailwaters of Lynxville, Wisconsin. The river’s current can vary drastically depending on water levels and weather conditions, creating both opportunities and challenges for anglers. The region features a combination of deep, swift river channels, shallow backwaters, islands, sloughs, and flooded timber, all providing ideal habitats for largemouth and smallmouth bass.

1. Pre-Spawn Fishing (Late Winter to Early Spring)

When to Fish:

Pre-spawn bass in Pool 10 typically begin to move toward shallower water from mid-March through April, depending on water temperatures and weather patterns. Water temps around 45-55°F signal the start of pre-spawn activity, with bass becoming more aggressive as they prepare for the spawn.

Techniques to Use:

• Jerkbaits: A suspended jerkbait is one of the top choices for pre-spawn bass. Fish it over drop-offs, along ledges, or near deeper structures like submerged rock piles and sunken logs. The erratic presentation mimics baitfish and triggers strikes.
• Crankbaits: Choose medium-diving crankbaits in natural colors like shad or crawfish. Crankbaits work well for covering larger areas of structure such as the outer edges of backwater channels and main river points.
• Jigs: Pitching a football head jig with a craw trailer along the edges of drop-offs and river ledges can be effective. The slow, bottom-bouncing presentation allows you to target bass in deeper water that are preparing to move shallow.
• Swimbaits: A larger, soft-plastic swimbait can be used to mimic schools of baitfish moving through the river.

Key Locations:

• Main River Channels: Bass during the pre-spawn stage can often be found staging along the main river channel, particularly around bends and secondary points.
• Backwaters & Creek Mouths: These areas warm up quicker and often serve as staging zones before the bass move shallow for the spawn.

2. Spawn Fishing (Mid to Late Spring)

When to Fish:

Spawn occurs when water temperatures reach around 60-65°F, typically from late April to early May, although this can vary depending on weather patterns and water flow.

Techniques to Use:

• Flipping and Pitching: Bass will be guarding nests in shallow, protected backwater areas, often near submerged vegetation, flooded timber, and isolated rock piles. Use a Texas-rigged creature bait or jig with a soft plastic trailer to flip into these areas, ensuring your presentation mimics a vulnerable prey item.
• Spinnerbaits: A spinnerbait is a great tool for covering areas where bass may be actively feeding or staging close to spawning areas. Opt for bright colors to attract fish in the murky water often found in the river system.
• Finesse Techniques: In clearer backwater areas or when bass are not aggressively hitting larger lures, consider using a wacky rigged worm or a drop-shot rig for a more subtle presentation.

Key Locations:

• Shallow Backwater Flats: These areas heat up first and often serve as the primary spawning grounds. Look for bass around shallow reed beds, submerged timber, and gravel flats.
• Islands and Points: On the main river or near the entrances to backwaters, islands and points often hold pre-spawn bass that will move into shallow spawning areas once the temperature rises.

3. Post-Spawn Fishing (Late Spring to Early Summer)

When to Fish:

Once the spawn is complete (usually late May to early June), bass begin to move off their nests and seek recovery. Water temperatures in Pool 10 during post-spawn typically range from 65°F to 75°F.

Techniques to Use:

• Carolina Rig: Bass often retreat to deeper water, but they are still hungry and will feed aggressively. A Carolina rig with a soft plastic bait (like a lizard or worm) is effective when fishing deeper structures like points, humps, or sunken islands.
• Topwater Lures: Early morning or late evening can offer excellent opportunities for topwater lures like poppers or walking baits, especially near shallow points or the mouths of creeks where bass are still holding.
• Jigs and Soft Plastics: Bass are still holding near structure in deeper water, so continue to use jigs and plastics in areas like channel bends, rock piles, or fallen timber.

Key Locations:

• Deeper Water Near Spawn Areas: As bass move away from the shallow spawning grounds, they will often seek deeper, submerged structures nearby, such as channel ledges, submerged trees, and deeper rock piles.
• Secondary Points and Drop-offs: Bass are often found in areas near their spawning zones, especially along the outside edges of flats and river bends.

4. Summer Fishing (Mid-Summer)

When to Fish:

In the summer months (July and August), bass move to deeper, cooler water, particularly during the day when temperatures soar. They are more active during low-light periods (early mornings and evenings).

Techniques to Use:

• Deep Cranking: Use deep-diving crankbaits to target bass that are holding on structure in depths of 12-20 feet, such as ledges, submerged rock piles, or creek channels.
• Drop-Shot Rig: A drop-shot rig with a small worm or minnow imitation is great for fishing in deep, slow-moving water where bass tend to congregate.
• Jigs: A heavy football jig works well when dragged along deep, rocky bottoms or over sunken trees.
• Night Fishing: Night fishing can be productive during the summer, with bass feeding actively after dark. Use larger soft plastics or topwater lures like buzzbaits for night-time strikes.

Key Locations:

• Main Channel and Drop-offs: During the heat of the summer, bass retreat to the deepest parts of the river, where they can stay cool. Look for ledges, drop-offs, and deep holes along the main river channel and major backwaters.
• Hydrilla and Vegetation Edges: As the river warms, bass may move into areas with submerged vegetation, particularly around the mouths of creeks and backwaters.

5. Fall Fishing (Late Summer to Early Fall)

When to Fish:

As temperatures cool in late September to October, bass become more active and begin feeding aggressively to prepare for winter.

Techniques to Use:

• Crankbaits and Lipless Crankbaits: Fall bass are often feeding heavily, so fast-moving baits like crankbaits and lipless crankbaits can be effective for covering water quickly and targeting aggressive fish.
• Spinnerbaits and Bladed Jigs: These lures work well in areas with scattered cover or around submerged weeds and timber.
• Jigs and Soft Plastics: As bass begin to move deeper in preparation for winter, use jigs or soft plastics to work deeper structures, including ledges and drop-offs.

Key Locations:

• Main River Bends and Drop-offs: Fall is the time for bass to feed heavily before the colder months, so target the deeper sections of the river, especially near bends, drop-offs, and creek channels.
• Backwaters and Mudflats: As water cools, bass may move into backwater areas to feed before winter, particularly where shad and baitfish congregate.

Conclusion

Fishing a bass tournament on Pool 10 of the Mississippi River requires adaptability to the river’s ever-changing conditions. Whether you’re targeting bass during the pre-spawn, spawn, post-spawn, summer, or fall, understanding the seasonal movements and behavior of the fish is key to success. Keep in mind that the Mississippi River is dynamic, with currents, water levels, and weather constantly influencing fishing patterns. By being prepared with the right techniques and understanding the behavior of bass at each stage of the season, you’ll be better equipped to make the most of your time on the water in a tournament setting. Happy fishing!

    Things you should know about bass tournament fishing from Harpers Ferry, Iowa, in Pool 10 of the Mississippi river. 

   Harpers Ferry is a little used ramp for bass tournaments.  However, it occasionally hosts tournaments on busy weekends. This is because other ramps are reserved for other events.  Harpers Ferry is on the northern end of pool 10 and has quick access to popular areas.  The spillway is always good and the “S” curve takes you to the main channel.  Nearby Murray Island and Mud Hen Lake are hot spots for pan fisherman, while Japan slough sees plenty of bass fishing too.  Off slough and Taylor lakes are harder to get to but worth the journey as excellent bass fishing reports come from this area. Be very careful as low water can ruin your day and your lower unit in this area of pool 10 and the backwaters.  Submerged trees are plentiful and have taken out many lower units over the years, just slow down in new low water to be safe.

    This entire stretch of pool 10 actually sees a fair amount of bass anglers. Many anglers try to escape the heavily fished Prairie du Chien local spots and head north.  While Harpers has far less pressure than Prairie, it has an abundance of both largemouth and smallmouth bass.  If you spend your time wisely and scout the areas current and clear water, you’ll find them.  The smallmouth will want to be close to current and structure, when those two factors meet the smallmouth will be near.

    One of Iowa’s best Minn Kota trolling motor sales and repair shop is also nestled into Harpers Ferry.  If your shallow water crusades have gotten stumpy, give J-Man’s a call.  

  Check out J-Man’s if your trolling motor needs some TLC.  

  Tight lines from your friends at Bass-Cafe.com.

    Check us out on Facebook@IowaBassTournaments