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27-acre lake near Iron County. The lake tops out around 9 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.
Start shallow in spring: yellow perch sit in 2 to 9 ft that time of year. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring yellow perch. Plan around early morning in the warm months. 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 | 2 to 9 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 9 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 9 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 9 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
In spring, northern pike run shallow here, mostly 2 to 8 ft. Summer pushes them deeper, 3 to 9 ft, and winter fish settle into 3 to 9 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. In summer the feeding windows fall in early morning and the evening. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 9 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 9 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 9 ft | midday | Tip-ups, Large jigging spoon |
Start shallow in spring: smallmouth bass sit in 2 to 9 ft that time of year. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. If you only fish one area, make it Break off the point: a drop-off around 4 ft that scores prime in winter. 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 | 2 to 9 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 3 to 9 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 3 to 9 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 3 to 9 ft | midday | Blade bait, Hair jig |
Spring largemouth bass on Petrow Lake hold shallow, usually 2 to 9 ft. Summer fish stay in 3 to 9 ft, and winter fish hold in 3 to 9 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Best bite is early morning and the evening. A texas-rigged 10" worm or a deep-diving crankbait covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 3 to 9 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 2 to 9 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 3 to 9 ft | midday | Blade bait, Jigging spoon |
Start shallow in spring: rock bass sit in 2 to 9 ft that time of year. Summer fish stay in 2 to 9 ft, and winter fish hold in 3 to 9 ft. Main-lake point is the standout, a point at roughly 2 ft, rated prime for summer rock bass. In summer the feeding windows fall in the evening. Summer baits: a ned rig (small) or a marabou jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 9 ft | midday & dawn | 1/16 oz jig + grub, Small inline spinner |
| Summer | 2 to 9 ft | dusk | Ned rig (small), Marabou jig |
| Fall | 3 to 9 ft | midday | Small tube jig, Inline spinner |
| Winter | 3 to 9 ft | midday | Tungsten jig + plastic, Small spoon + spike |
Start shallow in spring: bluegill sit in 1 to 6 ft that time of year. By summer they slide out to 2 to 9 ft, and by winter most fish are in 3 to 9 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring bluegill. Best bite is early morning and the evening. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 2 to 9 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 9 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 9 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Petrow Lake also holds pumpkinseed (2 to 9 ft in summer), brown bullhead (2 to 9 ft in summer). Pick any of them on the map above for rated spots and bait picks.
How deep is Petrow Lake?
Petrow Lake is about 9 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 Petrow Lake?
Anglers target largemouth bass, smallmouth bass, northern pike, bluegill, yellow perch, rock bass, pumpkinseed, brown bullhead on Petrow 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 Petrow Lake?
Shallow bay flat is the top-rated area: a weed flat in about 4 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 Petrow 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.
Perch Lake · Webb Lake · Norway Lake · Nesbit Lake · Jingle Lake · Winslow Lake
See how Petrow Lake stacks up: best largemouth bass lakes in Michigan · best smallmouth bass lakes in Michigan · best northern pike lakes in Michigan · best bluegill 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.