Au Sable Lake fishing: Northern Pike, Walleye, Rock Bass
Target species: Northern Pike, Walleye, Rock Bass
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Au Sable Lake, 1 lane.
The lake
Au Sable Lake covers 261 acres in Michigan, across Ogemaw County. It is a lake: 91.3% of it is 36 feet deep or less; the deepest point measured is at least 52 feet (15.9 m). Our records hold 3 species for this water.
Depth and bottom
Deepest measured point: at least 52 ft (15.9 m). That is the deepest contour line: the bottom goes deeper. 91.3% of the water is 36 feet or shallower. We hold 50 depth contour lines for this water.

- 0–3 ft: 6.2% of the water
- 3–6 ft: 9.4% of the water
- 6–9 ft: 10.4% of the water
- 9–12 ft: 8.6% of the water
- 12–15 ft: 7.6% of the water
- 15–18 ft: 7.5% of the water
- 18–21 ft: 8% of the water
- 21–24 ft: 10.3% of the water
- 24–27 ft: 10.1% of the water
- 27–30 ft: 5.5% of the water
- 30–33 ft: 3.9% of the water
- 33–36 ft: 3.8% of the water
- 36–39 ft: 4.1% of the water
- 39–42 ft: 2% of the water
- 42–45 ft: 1.3% of the water
- 45–48 ft: 1.1% of the water
- 48–51 ft: 0.3% of the water
3 target fish, led by Northern Pike
- Northern Pike — Feeding water: 50–75°F.
- Walleye — Feeding water: 50–75°F.
- Rock Bass — Feeding water: 65–75°F.
Stocking: 344,936 fish, 1984–2019
Michigan DNR records list 344,936 fish released into this water from 1984 to 2019. The latest stocking on record is from 2019, more than three years ago.
- Walleye: 281,361 in 1989–2019
- Northern Pike: 63,575 in 1984–1991
1 ramp or launch on this water
On this water we hold 1 trailer ramp.

- Au Sable Lake — 1 lane, open 4am–11pm, restrooms. Rifle River State Recreation Area. phone 989-473-2258
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.
Water and conditions
Our water temperature readings average 74°F; they do not cover the whole year, so this is not a yearly average. pH averages 8.4. These readings span 2017–2023.
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.
- EPA NLA — EPA National Lakes Assessment: class B, a depth figure measured and published by an agency, without a bottom map.
- 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.


















