Union Lake fishing: Rainbow Trout, Walleye, Lake Trout

Target species: Rainbow Trout, Walleye, Lake Trout, Brown Trout, Redear
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Union Lake South, 2 lanes.

The lake

Union Lake covers 475 acres in Michigan, across Oakland County. It is a lake: 93.1% of it is 80 feet deep or less; the deepest point measured is at least 110 feet (33.5 m). Our records hold 5 species for this water.

Depth and bottom

Deepest measured point: at least 110 ft (33.5 m). That is the deepest contour line: the bottom goes deeper. 93.1% of the water is 80 feet or shallower. We hold 29 depth contour lines for this water.

2017-09-13 Union Lake.jpg
Jamescarolinewiki · CC0
  • 0–10 ft: 18% of the water
  • 10–20 ft: 18.3% of the water
  • 20–30 ft: 15.5% of the water
  • 30–40 ft: 11.4% of the water
  • 40–50 ft: 9.5% of the water
  • 50–60 ft: 7.7% of the water
  • 60–70 ft: 7.3% of the water
  • 70–80 ft: 5.4% of the water
  • 80–90 ft: 4.5% of the water
  • 90–100 ft: 1.7% of the water
  • 100–110 ft: 0.9% of the water

5 target fish, led by Rainbow Trout

  • Rainbow Trout — Feeding water: 50–65°F.
  • Walleye — Feeding water: 50–75°F.
  • Lake Trout — Feeding water: 50–65°F.
  • Brown Trout — Feeding water: 50–65°F.
  • Redear — Feeding water: 65–85°F.

Stocking: 1,656,623 fish, 1980–2023

Michigan DNR records list 1,656,623 fish released into this water from 1980 to 2023.

  • Walleye: 1,297,441 in 1986–2023
  • Rainbow Trout: 239,940 in 1979–1990
  • Brown Trout: 14,000 in 1984
  • Lake Trout: 10,600 in 1988–1989

2 more species on the stocking list.

1 ramp or launch on this water

On this water we hold 1 trailer ramp.

  • Union Lake South — 2 lanes, open 4am–11pm, restrooms. Proud Lake State Recreation Area. phone 248-685-2433

The place listed has no fee or opening hours on file: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.

Mute Swans in Michigan 01.jpg
Snapdragon66 · CC BY-SA 4.0

What is hard here

Only 1 public ramp is 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.