Few methods are as direct as vertical jigging with sonar, because you see the fish, drop a lure to their depth and watch what happens. The technique suits deep structure, suspended schools, winter fishing and any situation where fish sit tight and need an accurate, close presentation. Sonar and GPS do much of the hard work: they tell you where fish are, how deep they sit and where to hold the boat. This guide explains how vertical jigging works, which gear and sonar settings help, how to position the boat, how to choose jigs and cadence, how to watch the screen as you fish and how to avoid common errors such as drifting off the spot.
Vertical jigging with sonar: what it is and when it works
A direct presentation
You hold the boat over the fish and drop a jig straight down, then lift and drop it to attract strikes.
When it works
It works for suspended fish, fish holding on structure, deep water and cold conditions, when fish respond to a lure presented right in front of them.
Why sonar matters
Sonar shows where fish are and how they react. Without it, you are jigging blind.
Set up your sonar for jigging
Use a zoomed view
Zoom on the area from your lure to the bottom so you see fish and lure clearly. See our fish finder settings guide.
Adjust sensitivity
Increase it enough to see your lure and fish without clutter.
Slow the scroll
A slower scroll helps you see fish marks and reactions.
Use a clean transducer
A clear transducer shows the best detail. See our transducer guide.
Position the boat
Find the fish, mark them and hold position
Mark the spot with a waypoint. Use a trolling motor, spot-lock feature if available or an anchor to hold the boat. See our marine GPS waypoints guide.
Account for wind and current
Drift can pull you off fish quickly. Make small corrections and watch your GPS position.
Avoid spooking fish
Approach quietly and avoid running over fish at speed.
Choose jigs and gear
Jigging spoons and jigs
Use compact, heavy lures that drop quickly and flash on the lift. Match size to forage and depth.
Rods and line
A sensitive rod and a low-stretch line help you feel bites at depth.
Match to depth
Heavier lures help in deeper water and wind, lighter lures in shallower water.
Technique
The lift and drop
Lift the rod smoothly, then let the jig fall on a controlled line, keeping contact. Many strikes come on the fall.
Vary cadence
Change speed and pauses until fish respond. Your sonar shows how they react.
Keep the jig in the zone
Hold the lure at or just above the fish. If fish rise toward it, slow down and keep it in view.
Set the hook
Strikes can be subtle. Watch the line and the screen.
Read fish reactions on sonar
Fish rise to the lure
This is a good sign. Slow your motion and keep it steady.
Fish ignore or flee
Change colour, size or cadence, or move. See our how to read a fish finder guide.
Bait marks
Bait near the lure suggests predators may be close. See our baitfish on a fish finder guide.
Where to jig
Deep structure and ledges
Look at ledges, humps and drop-offs. See our fishing drop offs guide.
Suspended schools
Locate schools in open water and jig at their depth. See our thermocline fish finder guide.
Bridge pilings and timber
Jig beside structure where fish hold. See our docks and piers sonar guide.
Through the ice
Similar principles apply in winter. See our ice fishing fish finder guide.
Common mistakes
- Drifting off the fish.
- Using too light a jig for the depth.
- Too much sensitivity creating clutter.
- Jigging too fast in cold water.
- Not marking productive spots.
A step-by-step jigging session
Imagine you find a school of fish holding at a certain depth on a ledge. First, mark the spot as a waypoint and move upwind or up-current of it. Drift or motor slowly to the position directly over the school and hold. Set your sonar to a zoomed view and drop the jig until you see it on the screen above the fish. Lift and drop in short strokes, watching how the fish respond. If they rise toward the lure, slow down. If they ignore it, change cadence or colour. When you catch a fish, drop again at once, because schools can be competitive. If the school leaves, mark the new position and follow it, or move to the next spot on your chart.
Keep your gear tidy
At depth, a tangled line wastes precious time with fish below the boat. Keep rods and tackle organised, and use a stable rod holder so you can drop the jig quickly.
Stay alert to boat traffic
When you stop in open water or near a channel, make sure you are visible and not in a lane of traffic. Use lights if visibility is poor, and keep a lookout. See our boat navigation safety basics.
Settings and screen layout for jigging
A good jigging layout often uses a split screen with a wide view on one side and a zoomed view on the other. The wide view shows structure and school position, and the zoom shows lure and fish detail. Add a chart or GPS panel if space allows, so you can see your position relative to the waypoint. Save the layout as a preset named for jigging so you can switch to it quickly. A tidy, consistent layout reduces distractions and keeps your focus on the fish.
Species and seasons for vertical jigging
Vertical jigging suits many species, from walleye and bass to crappie and saltwater species over reefs. In cold months, fish tend to hold tight and respond to slow jigging near the bottom. In summer, suspended fish near a thermocline may respond to quick lift-and-drop motions. In autumn, schools following bait can be targeted over channel edges. Use your sonar to see where fish sit, then adjust jig weight and cadence to match their mood. Keep notes on which combinations work, because patterns repeat from season to season and your records will make you faster on future trips.
Frequently asked questions
Do I need imaging sonar for jigging?
No, 2D CHIRP is enough, though imaging can help find structure.
How deep can I jig?
It depends on gear and conditions. Use heavier lures for deep water.
Can I jig from a kayak?
Yes, with care for balance and positioning. See our kayak fish finder guide.
What if fish do not bite?
Change lure, cadence or depth, or find new fish.
Drop it right on them
Vertical jigging with sonar rewards careful positioning and patient technique. Find fish, hold position, match your jig and watch what happens on the screen. Browse fish finders and GPS in our shop and contact us for help choosing equipment for deep structure and winter jigging.
Related reading from Fishtrail Outfitters
- Side Imaging vs Down Imaging: Which Sonar View Do You Need?
- How to Find Fish With a Fish Finder: A Practical Step-by-Step Method
- Fishing Drop Offs and Ledges With Sonar: Find Fish on the Edge
- River Fishing With a Fish Finder and GPS: Read Current, Holes and Structure
Products mentioned in this guide
- Fishfinder Garmin Striker Vivid 4CV + Sonar 77/200/455/800 KHz
- Fishfinder Garmin Striker Vivid 5CV + Sonar 77/200/455/800 KHz
- Fishfinder Garmin Striker Vivid 7CV + Sonar 77/200/455/800 KHz
Further reading: Take Me Fishing: how to get started and where to fish
Questions before you buy? Contact Fishtrail Outfitters or browse the shop.
