Long Lake

Lapeer County, Michigan · MI DNR bathymetric survey

27ft Max
depth

212 acres 10 contours Public access 31% weedy

Paddling Index66Mixedwooded shoreline · sheltered geometry

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Depth scale

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The lake

Survey readout

Long Lake is mapped to a depth of 27 ft on the Michigan DNR survey and covers about 212 acres in Lapeer County, Michigan.

Measured from the Michigan DNR inland-lake contour survey.

Deepest sounding: 27 ft
Mean depth: 5.2 ft · estimated
Surface area: 212 acres
Estimated volume: 1,094 acre-ft · 356M gal
Shoreline: 3.65 mi · irregular
Aquatic vegetation: 31% of surface · NDVI estimate
Public access: Boat Launch

Additional depth details10 contours

Contour depths: 0–27 ft
Recorded point soundings: 27 ft, 27 ft, 26 ft, 20 ft, 18 ft, 16 ft

84.2% of the surface sits over water shallower than 10 ft; 2.7% is deeper than 20 ft; the survey shows 3 distinct basins. Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.

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Location

Lapeer County, Michigan · 15 nearest of 20 lakes · tap a dot for that lake

Chart data

Provenance

Sources: MI DNR inland lake contours, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL), MI DNR Boat Launches.

⚠ Not for navigation

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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: 43.10350, -83.22506
MI DNR lake ID: L10839
Vertical exaggeration: 2.76×
Basemap: USDA NAIP · public domain
Model size: 2.3 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-08-21

66 / 100MixedData confidence: High

Long Lake has a heavily wooded and largely undeveloped 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	Excellent	24.4 of 30	77% natural land cover within 150 m of shore (30% forest, 47% wetland; 1% developed)
Geometric wind exposure	Very Good	14.3 of 25	mean fetch 1,135 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 · 3 trailer spaces
Road isolation	Good	6.7 of 15	some nearby classified roads · 12 MDOT-classified segments within 1.2 km, peak 1,729 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: Moderate — approximately 31% 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 — 30% forest and 47% wetland cover within 150 m of shore

Compare Michigan lakes by Paddling Index →

How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public environmental, access, roadway and watercraft-control data. It is not a user review, a safety rating, or a prediction of an individual outing. Differences of a few points should not be treated as meaningful — an 84 and an 82 are broadly comparable. Components and weights: natural setting 30%, geometric wind exposure 25%, watercraft controls 15%, public access 15%, road isolation 15%; observed motorboat activity is weighted 0% because no defensible lake-level measurement exists. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Sources: MI DNR Boating Access Sites (2026-08), MI DNR Watercraft Control Areas (2026-08), USGS/MRLC NLCD Land Cover (2021), MDOT Annual Average Daily Traffic (2025) and MI DNR bathymetric survey outline (0 ft isobath). Conditions change quickly — check current weather and local conditions before going out.

Fish you might catch

from angler catches, DNR surveys & active stocking

12 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

Channel Catfish

Largemouth Bass

Black Crappie

Crappie

Yellow Perch

Bluegill

Warmouth

Pumpkinseed

Golden Shiner

Brook Silverside

Iowa Darter

Historically stocked, no recent evidence: Muskellunge (last planted 1987) — not shown above.

Fishing rules for this lake Beta

Size and daily limits for the 12 species found here — 12 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.

Black CrappieOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland) The 25 is in any combination of the sunfishes — Bluegill, Pumpkinseed, Black and White Crappie, Rock Bass, Green, Longear and Redear Sunfish, Warmouth and hybrids — not 25 of each (FO-215.23A).

BluegillOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland) The 25 is in any combination of the sunfishes — Bluegill, Pumpkinseed, Black and White Crappie, Rock Bass, Green, Longear and Redear Sunfish, Warmouth and hybrids — not 25 of each (FO-215.23A).

Beta. This panel is newly published. Every value is parsed from the Michigan DNR fisheries orders and hand-checked against the printed digest, but the coverage and wording are still under review. If anything here disagrees with the Michigan DNR's Fisheries Orders or its printed digest, the DNR is right — the signed Fisheries Order is the legal text; the digest summarises it.

Brook SilversideOpen to harvestMinimum size: no size limit · Daily limit: no possession limit (2026 DNR digest · all other species)

Channel CatfishOpen to harvestMinimum size: 12" · Daily limit: 10 (FO-215 · statewide inland)

CrappieOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland) The 25 is in any combination of the sunfishes — Bluegill, Pumpkinseed, Black and White Crappie, Rock Bass, Green, Longear and Redear Sunfish, Warmouth and hybrids — not 25 of each (FO-215.23A).

Golden ShinerOpen to harvestMinimum size: no size limit · Daily limit: no possession limit (2026 DNR digest · all other species)

Iowa DarterOpen to harvestMinimum size: no size limit · Daily limit: no possession limit (2026 DNR digest · all other species)

Largemouth BassOpen to harvestMinimum size: 14" · Daily limit: 5 (FO-215 · statewide inland) The 5 is in any combination of Largemouth and Smallmouth Bass, not 5 of each (FO-215.23A).

Northern PikeOpen to harvestMinimum size: 24" · Daily limit: 2 (FO-215 · statewide inland)

PumpkinseedOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland) The 25 is in any combination of the sunfishes — Bluegill, Pumpkinseed, Black and White Crappie, Rock Bass, Green, Longear and Redear Sunfish, Warmouth and hybrids — not 25 of each (FO-215.23A).

WarmouthOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland) The 25 is in any combination of the sunfishes — Bluegill, Pumpkinseed, Black and White Crappie, Rock Bass, Green, Longear and Redear Sunfish, Warmouth and hybrids — not 25 of each (FO-215.23A).

Yellow PerchOpen to harvestMinimum size: no size limit · Daily limit: 25 (FO-215 · statewide inland)

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

Compiled from registered Master Angler catches, Michigan DNR fishery surveys and Michigan DNR stockings within the last 10 years. Silhouettes are stylized and scaled to typical adult sizes relative to one another. Presence is not a promise — fishing isn’t a sure thing.

Notable catches

Master Angler program · 2001–2025

Trophy-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.

8Catches recorded

3Species

Crappie4 recorded · to 15.5″ · latest 2025

Largemouth Bass3 recorded · to 23.2″ · latest 2023

Channel Catfish1 recorded · to 27.5″ · latest 2001

Biggest on record

Channel Catfish27.5″ · 2001 · spincasting

Largemouth Bass23.2″ · 2012 · spincasting

Largemouth Bass22″ · 2023 · spincasting · artificial lure

Largemouth Bass22″ · 2018 · spincasting · crawler

Crappie15.5″ · 2019 · ice fishing

Bait: artificial lure (4) · crawler (1)
Method: spincasting (7) · ice fishing (1)

Master Angler entries are fish that met the program’s minimum size and were registered by the angler — they show what this lake has produced, not what a day here will produce. A catch on record is history, not a species listing: “Fish you might catch” lists only species with current evidence. Source: Michigan DNR Master Angler data.

Fishery

surveyed 2009

1,901Fish sampled

11Species

Gamefish Largemouth Bass 41 · Channel Catfish 17 · Northern Pike 17

Panfish Bluegill 1,568 · Black Crappie 88 · Yellow Perch 65

All survey species11 species

Gamefish

Largemouth Bass41 caught · to 19″

Channel Catfish17 caught · to 27″

Northern Pike17 caught · to 28″

Panfish

Bluegill1,568 caught · to 8″

Black Crappie88 caught · to 10″

Yellow Perch65 caught · to 7″

Pumpkinseed25 caught · to 6″

Warmouth17 caught · to 8″

Forage & nongame

Golden Shiner22 caught · to 6″

Brook Silverside17 caught · to 4″

Iowa Darter1 caught

Stocking: Since 1986, fish stocking has occurred sporadically (Table 4).

Length is the largest fish netted in the survey, not an angler record. Source: Michigan DNR Status of the Fishery Resource report.

DNR stocking

state stocking record · 1986–2017

Fish the Michigan DNR has planted in this lake — what was added, distinct from what a survey netted above.

Northern pike12,274 stocked · 2001–2017 · 6 plantings

Complete stocking history6 older species

Largemouth bass18,515 stocked · 1987–1999 · 7 plantings

Channel catfish25,021 stocked · 1986–1987 · 3 plantings

Bluegill1,800 stocked · 1987

Pumpkinseed1,492 stocked · 1987

Black crappie16 stocked · 1987

Muskellunge14 stocked · 1987

Source: Michigan DNR Fish Stocking Database.

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 distance

⛻ Campground≈1.5 mi

From OpenStreetMap community mapping — shown only where something is mapped; an amenity missing here may still exist. Distances are straight-line. Verify before you rely on it. © OpenStreetMap contributors (ODbL).

Bait & tackle nearby

licensed retail bait dealers · straight-line distance

Hunters Den≈4.2 mi2110 N Lapeer Rd, Lapeer · Google · Apple

RJC Outdoors and Lots More≈4.4 mi · (810) 606-81131830 N Lapeer Rd, Lapeer · Google · Apple

Huron Live Bait≈6.1 mi1245 N Summers Rd, Imlay City · Google · Apple

Dealers licensed by the Michigan DNR to sell live bait; listing is not an endorsement. Distances are straight-line, not driving — and call ahead: hours and stock change. Source: Michigan DNR retail bait dealer data.

Quick answers

Long Lake — common questions

How deep is Long Lake?

The deepest contour on the Michigan DNR bathymetric survey of Long Lake is 27 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 Long Lake?

Long Lake covers about 212 acres in Lapeer County, Michigan.

What is the average depth of Long Lake?

The estimated mean depth of Long Lake is 5.2 ft, calculated from the survey contours.

What fish are in Long Lake?

Species with survey, catch or recent-stocking evidence include channel catfish, largemouth bass, northern pike, black crappie, bluegill, crappie. The page lists all 12 species and the evidence behind each.

Is there public access to Long Lake?

Yes. The Michigan DNR boat-launch data identifies 1 public access site on Long Lake, including Long Lake.