Swan Lake
depth
Get directions
Depth scale
Survey readout
Swan Lake is mapped to a depth of 30 ft on the Michigan DNR survey and covers about 48 acres in Schoolcraft County, Michigan.
Measured from the Michigan DNR inland-lake contour survey.
- Deepest mapped contour
- 30 ft
- Mean depth
- 12.1 ft · estimated
- Surface area
- 48 acres
- Estimated volume
- 575 acre-ft · 188M gal
- Shoreline
- 1.33 mi · lobed
- Aquatic vegetation
- 4% of surface · NDVI estimate
- Public access
- No public DNR launch identified
Additional depth details6 contours
- Contour depths
- 0–30 ft
- Recorded point soundings
- 30 ft
44% of the surface sits over water shallower than 10 ft; 23.8% is deeper than 20 ft. Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.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
- 46.16560, -86.57532
- MI DNR lake ID
- L34121
- Vertical exaggeration
- 2.66×
- Basemap
- USDA NAIP · public domain
- Model size
- 2.4 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-08-21Swan Lake has a heavily wooded and largely undeveloped setting, well sheltered geometry, little nearby major-road exposure. 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 | Excellent | 30.6 of 35 | 87% natural land cover within 150 m of shore (75% forest, 11% wetland; 5% developed) |
| Geometric wind exposure | Excellent | 28.1 of 29 | mean fetch 500 m · 49% of sampled water within 500 m of shelter · short fetch in most directions |
| Watercraft controls | None identified | 8.8 of 18 | No special watercraft restriction identified in the current DNR source. Motors permitted, subject to general law. |
| Public access | Not listed | — | No DNR-listed access site. Township, county and road-end launches are not in this source, so this is not evidence that access is poor — the component is excluded and the remaining weights are renormalized. |
| Road isolation | Excellent | 17.6 of 18 | relatively isolated from major roads · 3 MDOT-classified segments within 1.2 km, peak 161 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 4% 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 — 75% forest and 11% wetland cover within 150 m of shore
Compare Michigan lakes by Paddling Index →
Fish you might catch
from angler catches & active stocking2 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
Smallmouth Bassstocked
PumpkinseedHistorically stocked, no recent evidence: Brown Trout (last planted 1988), Rainbow Trout (last planted 1986), Bluntnose Minnow (last planted 1986) — not shown above.
Fishing rules for this lake Beta
Size and daily limits for the 2 species found here — 2 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 · 2009One Master Angler catch is on record for this lake: 9.8″ pumpkinseed in 2009 on worm.
DNR stocking
state stocking record · 1986–1988Fish the Michigan DNR has planted in this lake — what was added, distinct from what a survey netted above.
No stockings recorded since 1988 — shown as history.
Non-native species records
No non-native species recorded in the available dataset. This does not confirm that no non-native species are present.
Source: Midwest Glacial Lakes Partnership Conservation Planner; underlying nonindigenous species records from the USGS Nonindigenous Aquatic Species database.
At the lake
community-mapped amenities · straight-line distanceBait & tackle nearby
licensed retail bait dealers · straight-line distanceSwan Lake — common questions
How deep is Swan Lake?
The deepest contour on the Michigan DNR bathymetric survey of Swan Lake is 30 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 Swan Lake?
Swan Lake covers about 48 acres in Schoolcraft County, Michigan.
What is the average depth of Swan Lake?
The estimated mean depth of Swan Lake is 12.1 ft, calculated from the survey contours.
What fish are in Swan Lake?
Species with survey, catch or recent-stocking evidence include smallmouth bass, pumpkinseed. The page shows the evidence behind each.
Is there public access to Swan Lake?
No public launch for Swan Lake appears in the Michigan DNR access data. That is not the same as the lake being private -- municipal and private ramps are not in that source.
