Loon Lake
depth
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Depth scale
Survey readout
Loon Lake is mapped to a depth of 128 ft on the Michigan DNR survey and covers about 407 acres in Iosco County, Michigan.
Measured from the Michigan DNR inland-lake contour survey (depths read from the survey's isobath field; this lake's summary-depth column is blank in the source).
- Deepest sounding
- 128 ft
- Mean depth
- 34.5 ft · estimated
- Surface area
- 407 acres
- Estimated volume
- 14,036 acre-ft · 4,574M gal
- Shoreline
- 4.23 mi · lobed
- Aquatic vegetation
- 1% of surface · NDVI estimate
- Public access
- Boat Launch
Additional depth details23 contours
- Contour depths
- 0–128 ft
- Recorded point soundings
- 128 ft, 107 ft, 102 ft, 95 ft, 80 ft, 76 ft
Other waters with a public launch on this map: Long Lake. Their launches are not marked on the model — only Loon Lake’s own are.
27.5% of the surface sits over water shallower than 10 ft; 60.9% 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 Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.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.
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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
- 44.41011, -83.82106
- MI DNR lake ID
- L12948
- Vertical exaggeration
- 1.4×
- Basemap
- USDA NAIP · public domain
- Model size
- 2.6 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-08-21Loon Lake has a partly natural setting, moderate open-water exposure, 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 | Good | 13.4 of 30 | 55% natural land cover within 150 m of shore (32% forest, 19% wetland; 30% developed) |
| Geometric wind exposure | Good | 11.2 of 25 | mean fetch 1,520 m · 0% of sampled water within 500 m of shelter · moderate open-water 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 · 2 ramp lanes · 38 trailer spaces |
| Road isolation | Good | 7.5 of 15 | some nearby classified roads · 31 MDOT-classified segments within 1.2 km, peak 2,839 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 1% 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
- Moderate — 32% forest and 19% wetland cover within 150 m of shore
Compare Michigan lakes by Paddling Index →
Fish you might catch
from angler catches, DNR surveys & active stocking14 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 Pike
Walleye
Largemouth Bass
White Sucker
Smallmouth Bass
Brown Bullhead
Crappie
Yellow Bullhead
Yellow Perch
Bluegill
Rock Bass
Hybrid Sunfish
Pumpkinseed
Green SunfishHistorically stocked, no recent evidence: Rainbow Trout (last planted 1981) — not shown above.
Fishing rules for this lake Beta
Size and daily limits for the 14 species found here — 14 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 · 1995–2025Trophy-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 species9 species
Biggest on record
Bait: live bait (4) · artificial lure (3) · crawler (2)
Method: spincasting (14) · still fishing (7) · ice fishing (2)
Fishery
DNR SFR 2012-127Gamefish Largemouth Bass 75 · Northern Pike 26 · Walleye 23
Panfish Bluegill 739 · Rock Bass 615 · Pumpkinseed 429
All survey species12 species
Gamefish
Panfish
Bullhead & catfish
Forage & nongame
DNR stocking
state stocking record · 1980–2026Fish the Michigan DNR has planted in this lake — what was added, distinct from what a survey netted above.
Non-native species records
1 recordPlants & 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.
At the lake
community-mapped amenities · straight-line distanceBait & tackle nearby
licensed retail bait dealers · straight-line distanceLoon Lake — common questions
How deep is Loon Lake?
The deepest contour on the Michigan DNR bathymetric survey of Loon Lake is 128 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 Loon Lake?
Loon Lake covers about 407 acres in Iosco County, Michigan.
What is the average depth of Loon Lake?
The estimated mean depth of Loon Lake is 34.5 ft, calculated from the survey contours.
What fish are in Loon Lake?
Species with survey, catch or recent-stocking evidence include largemouth bass, northern pike, smallmouth bass, walleye, bluegill, brown bullhead. The page lists all 14 species and the evidence behind each.
Is there public access to Loon Lake?
No public launch for Loon 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.
