Sign inSign up freeRecent catches at Thayer Lake
Shared by DepthScout anglers. Exact spots stay private, always.
Fishing Thayer Lake: what the data says
87-acre lake near Keweenaw County. The lake tops out around 5 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Here is how the season plays out for each species, straight from the data behind the map.
Yellow Perch fishing at Thayer Lake
Spring yellow perch on Thayer Lake hold shallow, usually 1 to 5 ft. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for yellow perch in spring. In summer the feeding windows fall in early morning. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 2 to 5 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 2 to 5 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 2 to 5 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Smallmouth Bass fishing at Thayer Lake
In spring, smallmouth bass run shallow here, mostly 1 to 5 ft. Summer fish stay in 2 to 5 ft, and winter fish hold in 2 to 5 ft. Main-lake point is the standout, a point at roughly 2 ft, rated prime for fall smallmouth bass. Plan around early morning and the evening in the warm months. A drop shot (goby/minnow) or a ned rig covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 5 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 2 to 5 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 2 to 5 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 2 to 5 ft | midday | Blade bait, Hair jig |
Notable structure
- Secondary point: point, around 5 ft
- Deep basin: deep basin, around 5 ft
- Break off the point: drop-off, around 5 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
- Main-lake point: point, around 2 ft
Common questions
How deep is Thayer Lake?
Thayer Lake is about 5 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Thayer Lake?
Anglers target smallmouth bass, yellow perch on Thayer Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species listed for the nearest surveyed lakes in the region, filtered to this lake's depth and habitat.
Where is the best fishing spot on Thayer Lake?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Thayer Lake?
For yellow perch, 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
Gratiot, Lake · Mud Lake · Calumet Lake · Bailey, Lake · Deer Lake · Lake Superior - Keweenaw Peninsula
See how Thayer Lake stacks up: best smallmouth bass lakes in Michigan · best yellow perch lakes in Michigan
Browse all Michigan fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.