Lowland-Wetland

Lowland-wetland walleyes seldom grow huge, but a 10-pounder is possible, and overlooked 3- to 4-pound fish are fairly typical. Flatland impoundments tend to grow slightly larger fish, though viewed as a whole, anglers equate the shallow, featureless lake scene with eatin’-sized walleyes rather than with trophies.

Reading not-so-classic Structure

Lowland and flatland reservoirs are the equivalent of eutrophic natural lakes. Both are shallow and fertile and usually have stained to dark water, which keeps walleyes relatively shallow most of the year. Lowland impoundments often have expansive dishpan-like soft basins in which the river channel has become silted up by erosion, except perhaps in the deeper portions near dams. Many have shallow shoreline weedgrowth and remnant timber or cut stumps on the flats.

Flatland impoundments feature extensive flats, with or without woodcover, and generally have distinctive river and creek channels cutting across them. These channels offer deep water fall and wintering areas, particularly at channel bends and intersections. Channels also serve as fish highways between shallows and deeper water. Both flatland and lowland impoundments tend to be wide, with wide cove mouths. River channels, where present, tend to lie far from shore, rather than brushing up against shoreline structure.

Cover often plays an integral role in both environments. Generally, stable water levels are conducive to developing weedgrowth, but dark water restricts it to the shallows, perhaps in bays.

In summer, walleyes may lie in cover atop flats adjacent to deep water or to creek channels. Walleyes tend to settle on favorable depth ranges based on water clarity, and they’ll make best use of any available cover at that level. Thus they can be some distance away from any obvious drop-off as long as the local conditions fulfill their needs for forage and safety.

Pitching to weed- or woodcover with jigs or slipbobber rigs or casting crankbaits atop the flats may outproduce rigging or jigging along channel edges—if channels exist. Suspended fish often feed on shad in midlake, particularly in waters where cover is absent, such as in the shallow impoundments of the central prairies or Ohio farm country. The most effective summer tactic may simply be to troll crankbaits with planer boards in areas where you see fish on your electronics.

Subtleties rather than obvious structure often dictate walleye location in these waters. Submerged woodcover ranging from a prominent field of standing timber or a tangle of logs deposited by current, down to an almost imperceptible scattering of sticks and limbs in a general area, may be sufficient to hold walleyes.

Slow tapers, except where creek or river channels are present, are the rule. These lakes can be a structure fisherman’s nightmare; at first glance, everything appears the same. Yet once you know what to look for, fish-attracting subtleties become more apparent.