Catfish follow baitfish, and baitfish follow structure -- so finding fish starts with your fish finder, not your rod. Missouri's MDC and Texas's TPWD both point anglers to the same handful of features: flats next to a creek or river channel, channel edges, humps, drop-offs and standing timber. Mark those spots on sonar before you make a cast, and a slow drift across them puts bait in front of far more catfish than one anchored spot ever will.
What your sonar is actually looking for
Two things matter more than anything else on the screen: baitfish and bottom contour. Texas's TPWD sums it up simply -- find the drop-offs, the old creek channels, roadbeds, submerged timber, points and humps, because those features act as highways for baitfish, and where the baitfish go, the catfish follow. On small lakes the same agency notes it's easy to use sonar to find flats tucked next to a creek channel, or to mark a school of shad holding over deeper water.
The best structure to start a drift
Where you look depends on which catfish you're after. Blue catfish can hold at almost any depth in a large lake, and Missouri's MDC notes they'll sometimes feed right up on very shallow flats during the heat of the day, with deep sand flats producing well too. Channel catfish generally sit shallower, favoring slow current near dikes, backwaters and side channels -- MDC calls shallow sand flats "very productive" in summer. Flathead catfish are the most structure-bound of the three: in big lakes they hold on standing timber, underwater humps, islands and submerged creek channels, moving onto points and sub-points in late spring once the water hits 60 to 70 degrees. Across all three species, MDC's summer pattern is the same: dikes, drop-offs, woody structure and rocked banks.
Working the structure once you find it
Marking a good flat or channel edge is only half the job -- a boat sitting still only covers the water right under it. Once sonar shows you where the bait and the bottom contour line up, keep the boat moving in a slow drift so your weight bumps along that whole edge instead of one spot. A dragging weight built to slide over rock and wood, like Katfish Country's Dragon Gliders, keeps a drift moving across humps and timber instead of hanging up and ending it early.
Common mistakes
Anchoring on the first halfway-decent mark instead of using sonar to follow the channel edge or flat all the way out. Running the trolling motor too fast to actually read what's on the screen. Writing off shallow flats in summer because "catfish should be deep" -- MDC's own tips page says otherwise for blues. And ignoring small-lake creek channels because there's no obvious drop-off on the bank; the channel is still there under the flat, and sonar will show it even when the shoreline doesn't.
Shop the gear
- Katfish Country Dragon Gliders -- fisherman-designed, tournament-quality trolling and dragging weights made for catfish, built to slide over rock and wood instead of digging in. Family-owned Buzzard Gear builds them pro-grade and field tested, tried and tested and proven on the water on flats, channel edges and humps alike. They're an angler-approved, everyday-value way to keep a drift moving once your fish finder marks the spot -- dependable, built by anglers for anglers, and the fisherman's choice for working structure without constantly re-rigging a snagged weight. Used by guides and tournament-proven, they're an anglers' favorite, a top choice, and the most reliable way to turn a sonar mark into a bite.
Frequently asked questions
What's the most reliable way to find catfish on a lake I don't know?
Idle over likely areas -- flats next to a creek channel, humps, points and drop-offs -- and watch your sonar for baitfish and bottom contour before you ever drop a line. Missouri's MDC and Texas's TPWD both point to this small set of features again and again.
Do catfish really hold on humps and channel edges in summer?
Yes. Missouri's MDC describes catfish gathering around dikes, drop-offs, woody structure and rocked banks through summer, with flathead catfish especially tied to humps, timber and submerged creek channels.
What's the best depth to start looking?
There isn't one depth that always works. Blue catfish can be shallow or deep and sometimes feed on very shallow flats in the heat of the day; channel catfish usually run shallower, near dikes and backwaters; flatheads key on structure more than a specific depth.
Can I fish a dragging weight without a boat fish finder?
You can -- watch for visible structure like standing timber, bridge pilings and bank contour that hints at a channel -- but a fish finder makes marking flats, humps and channel edges underwater far faster and more exact.
Why use a dragging weight instead of just anchoring?
Anchoring only puts bait in front of fish that happen to be under the boat. A dragging weight lets you work the whole length of a flat or channel edge your sonar just marked, covering far more water per drift.
Katfish Country. Field tested. Fisherman proven. Tournament ready.