Au Sable Lake
depth
Get directions
Depth scale
Survey readout
Au Sable Lake is mapped to a depth of 52 ft on the Michigan DNR survey and covers about 273 acres in Ogemaw County, Michigan.
Measured from the Michigan DNR inland-lake contour survey.
- Deepest sounding
- 52 ft
- Mean depth
- 12.4 ft · estimated
- Surface area
- 273 acres
- Estimated volume
- 3,381 acre-ft · 1,102M gal
- Shoreline
- 5.18 mi · irregular
- Aquatic vegetation
- 8% of surface · NDVI estimate
- Public access
- Boat Launch
Additional depth details10 contours
- Contour depths
- 0–52 ft
- Recorded point soundings
- 52 ft, 52 ft, 46 ft, 37 ft, 37 ft, 17 ft
50.8% of the surface sits over water shallower than 10 ft; 23.5% is deeper than 20 ft; the survey shows 2 distinct basins. Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.
Compare with another lakeProvenance
Sources: MI DNR inland lake contours, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL), MI DNR Boat Launches.
⚠ Not for navigationSpot an error? Send a correction
Map details & sources5 sources
All layers registered to one bounding box; positions in WGS 84.
Survey-derived depth contours drape over USGS 3DEP elevation, with a USDA NAIP aerial basemap and OpenStreetMap shoreline. Colour shows surveyed depth; dark lines are the survey's own isobaths.
- Coordinates
- 44.42905, -83.92115
- MI DNR lake ID
- L10155
- Vertical exaggeration
- 1.91×
- Basemap
- USDA NAIP · public domain
- Model size
- 2.5 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-08-21Au Sable Lake has a mostly natural, lightly developed setting, generally sheltered geometry, some nearby classified roads. No special watercraft restriction is identified in the current source.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Very Good | 21.6 of 30 | 74% natural land cover within 150 m of shore (13% forest, 61% wetland; 19% developed) |
| Geometric wind exposure | Very Good | 18.1 of 25 | mean fetch 783 m · 2% of sampled water within 500 m of shelter · generally short fetch |
| Watercraft controls | None identified | 7.5 of 15 | No special watercraft restriction identified in the current DNR source. Motors permitted, subject to general law. |
| Public access | Good | 12.8 of 15 | 1 site with DNR boating-facility records · 1 ramp lane · 6 trailer spaces |
| Road isolation | Good | 7.6 of 15 | some nearby classified roads · 12 MDOT-classified segments within 1.2 km, peak 2,443 vehicles/day |
Additional paddling considerations
These describe the lake but are not part of the v1 Paddling Index and do not change the number above.
- Wake sensitivity
- Low — wide enough that wakes disperse over most of the lake
- Aquatic vegetation
- Low — approximately 8% mapped coverage · NAIP aerial imagery (NDVI)
- Observed motorized activity
- Unknown — No lake-level measurement of boat traffic is available. Legal permission to operate motors is not evidence of use.
- Wildlife habitat potential
- High — 13% forest and 61% wetland cover within 150 m of shore
Compare Michigan lakes by Paddling Index →
Fish you might catch
from angler catches, DNR surveys & active stocking15 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
Northern Pikestocked
Walleyestocked
Largemouth Bass
White Sucker
Smallmouth Bass
Bullhead
Crappie
Yellow Bullhead
Bluegill
Rock Bass
Hybrid Sunfish
Pumpkinseed
Brook Silverside
Johnny Darter
Mimic ShinerFishing rules for this lake Beta
Size and daily limits for the 15 species found here — 15 open to harvest.
These are hook-and-line size, daily limit and season rules. Gear, spearing and bow fishing, spawning closures and rod limits are set by other Fisheries Orders and are not shown here.
From FO-206.26 (eff. 2026-04-01) / FO-215.23A (eff. 2023-09-15) / FO-254.25 (eff. 2025-10-10), checked against the 2026 Michigan Fishing Regulations digest · verified 2026-08-24. Regulations can change — Michigan DNR rules are the controlling source; verify current regulations before fishing. Official regulations
Notable catches
Master Angler program · 1997–2025Trophy-size fish anglers caught here and registered with the DNR — what people have actually caught, distinct from what a survey netted or the state stocked below.
Catch details by species8 species
Biggest on record
Bait: artificial lure (9) · live bait (5) · crawler (3)
Method: still fishing (15) · spincasting (14) · ice fishing (4) · drift fishing (2)
Fishery
surveyed 2019Bullhead & catfish
Forage & nongame
DNR stocking
state stocking record · 1984–2019Fish the Michigan DNR has planted in this lake — what was added, distinct from what a survey netted above.
Non-native species records
4 recordsMussels & snails
- Banded Mysterysnail
- Chinese Mysterysnail
- Zebra Mussel
Plants & algae
- Purple Loosestrife
What does non-native mean?
USGS records identify non-native species that have been documented for this lake or its shoreline. Non-native does not necessarily mean invasive, and historical records do not confirm current presence.
Source: Midwest Glacial Lakes Partnership Conservation Planner; underlying nonindigenous species records from the USGS Nonindigenous Aquatic Species database.
Bait & tackle nearby
licensed retail bait dealers · straight-line distanceAu Sable Lake — common questions
How deep is Au Sable Lake?
The deepest contour on the Michigan DNR bathymetric survey of Au Sable Lake is 52 ft. That is the deepest depth the historical survey map records, which may differ from the deepest point of the lake itself.
How big is Au Sable Lake?
Au Sable Lake covers about 273 acres in Ogemaw County, Michigan.
What is the average depth of Au Sable Lake?
The estimated mean depth of Au Sable Lake is 12.4 ft, calculated from the survey contours.
What fish are in Au Sable Lake?
Species with survey, catch or recent-stocking evidence include largemouth bass, northern pike, smallmouth bass, walleye, bluegill, bullhead. The page lists all 15 species and the evidence behind each.
Is there public access to Au Sable Lake?
Yes. The Michigan DNR boat-launch data identifies 1 public access site on Au Sable Lake, including Au Sable Lake.
