Corey Lake fishing: Largemouth Bass, Rainbow Trout, Walleye
Target species: Largemouth Bass, Rainbow Trout, Walleye, Redfin Pickerel, Bluegill, Cisco, Yellow Perch
Boat: 3 ramps and launches on file for this water.
Start here: Launch at Corey Lake, 1 lane.
The lake
Corey Lake covers 608 acres in Michigan, across St. Joseph County. It is a lake: 92% of it is 65 feet deep or less; the deepest point measured is at least 70 feet (21.3 m). Our records hold 12 species for this water.
Depth and bottom
Deepest measured point: at least 70 ft (21.3 m). That is the deepest contour line: the bottom goes deeper. 92% of the water is 65 feet or shallower. We hold 47 depth contour lines for this water.
- 0–5 ft: 19.5% of the water
- 5–10 ft: 15.4% of the water
- 10–15 ft: 9.6% of the water
- 15–20 ft: 8.4% of the water
- 20–25 ft: 6.1% of the water
- 25–30 ft: 4.8% of the water
- 30–35 ft: 4.5% of the water
- 35–40 ft: 3.7% of the water
- 40–45 ft: 4.2% of the water
- 45–50 ft: 6.9% of the water
- 50–55 ft: 3.9% of the water
- 55–60 ft: 2.6% of the water
- 60–65 ft: 2.4% of the water
- 65–70 ft: 8% of the water
7 target fish, led by Largemouth Bass
- Largemouth Bass — Feeding water: 65–85°F.
- Rainbow Trout — Feeding water: 50–65°F.
- Walleye — Feeding water: 50–75°F.
- Redfin Pickerel — Feeding water: 65–75°F.
- Bluegill — Feeding water: 70–85°F.
- Cisco — Feeding water: 40–60°F.
- Yellow Perch — Feeding water: 45–75°F.
Also recorded here: Green Sunfish, Pumpkinseed, Yellow Bullhead, Golden Shiner, Banded Killifish.

Water and conditions
Water clarity runs 10.7–24 feet on our readings, averaging 16.6 feet, from 234 readings. Our water temperature readings average 76°F; they do not cover the whole year, so this is not a yearly average. These readings span 2017–2022. The latest reading is from 2022, more than three years ago: read these numbers as history, not as the water today.
Stocking: 368,401 fish, 1980–2000
Michigan DNR records list 368,401 fish released into this water from 1980 to 2000. The latest stocking on record is from 2000, more than three years ago.
- Rainbow Trout: 266,129 in 1981–2000
- Walleye: 102,272 in 1985–1992
3 ramps and launches on this water
On this water we hold 2 trailer ramps and 1 boat ramp.

- Corey Lake — 1 lane, restrooms. Allegan Field Office. phone 269-673-4747 · website mcgi.state.mi.us/MRBIS/BASDetail.aspx?basid=A-14-014
- Harwood Lake — 1 lane, open 4am–11pm, restrooms. Cassopolis Field Office. phone 269-673-4747 · website mcgi.state.mi.us/MRBIS/BASDetail.aspx?basid=A-14-013
- Corey Lake Marina — Three Rivers. 59549 County Line Road, Three Rivers 49093 · phone +1 269 244 5878 · website coreylakemarina.com
Fee and opening hours are blank for all 3 places in this list: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.
What is hard here
Only 3 public ramps are on file, so the launch decides where you fish.
Where this data comes from
- Michigan EGLE — Michigan EGLE: depth contours: class A, a survey of the bottom.
- Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.


























