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Fishing Jamtama Lake: what the data says
320-acre lake near Ontario. The lake tops out around 38 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Cisco (Lake Herring) fishing at Jamtama Lake
Spring cisco (lake herring) on Jamtama Lake hold shallow, usually 10 to 38 ft. Summer fish stay in 11 to 38 ft, and winter fish hold in 11 to 38 ft. The spot to know is Deep basin, a deep basin in about 32 ft of water that rates prime for cisco (lake herring) in spring. Plan around early morning in the warm months. Summer baits: a vertical flutter spoon (small) or a drop-shot micro plastic gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 10 to 38 ft | dawn & dusk | Small silver spoon, Tiny swim jig (white) |
| Summer | 11 to 38 ft | dawn | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Small casting spoon, Inline spinner (silver) |
| Winter | 11 to 38 ft | dawn | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Notable structure
- Deep basin: deep basin, around 32 ft
- Break off the point: drop-off, around 17 ft
- Main-lake point: point, around 10 ft
- Secondary point: point, around 10 ft
- Shallow bay flat: weed flat, around 5 ft
- Back-bay flat: weed flat, around 5 ft
Common questions
How deep is Jamtama Lake?
Jamtama Lake is about 38 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Jamtama Lake?
Anglers target cisco (lake herring) on Jamtama Lake.
Where is the best fishing spot on Jamtama Lake?
Deep basin is the top-rated area: a deep basin in about 32 ft of water that rates prime for cisco (lake herring) in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Jamtama Lake?
For cisco (lake herring), the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Cooke Lake · Heart L. · Alexander Lake · Elk Lake · Mountain L. · Hope Lake
See how Jamtama Lake stacks up: best cisco (lake herring) lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.