Long Lake

Montmorency County, Michigan · MI DNR bathymetric survey

84ft Max
depth

288 acres 13 contours Public access

Paddling Index58Mixedsheltered geometry

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Depth scale

010303640557084

The lake

Survey readout

Long Lake is mapped to a depth of 84 ft on the Michigan DNR survey and covers about 288 acres in Montmorency County, Michigan.

Measured from the Michigan DNR inland-lake contour survey.

Deepest sounding: 84 ft
Mean depth: 21.1 ft · estimated
Surface area: 288 acres
Estimated volume: 6,086 acre-ft · 1,983M gal
Shoreline: 5.66 mi · irregular
Aquatic vegetation: 4% of surface · NDVI estimate
Public access: Boat Launch

Additional depth details13 contours

Contour depths: 0–84 ft
Recorded point soundings: 84 ft, 70 ft, 70 ft, 70 ft, 55 ft, 38 ft

Other waters with a public launch on this map: Ess Lake. Their launches are not marked on the model — only Long Lake’s own are.

40.5% of the surface sits over water shallower than 10 ft; 46.4% 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 Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.

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Location

Montmorency County, Michigan · 15 nearest of 35 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: 45.12436, -83.97425
MI DNR lake ID: L12729
Vertical exaggeration: 1.4×
Basemap: USDA NAIP · public domain
Model size: 2.5 MB

Paddling

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

58 / 100MixedData confidence: High

Long Lake has a partly natural 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	Good	15.2 of 30	60% natural land cover within 150 m of shore (44% forest, 14% wetland; 25% developed)
Geometric wind exposure	Very Good	15.3 of 25	mean fetch 1,059 m · 12% 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	2 sites with DNR boating-facility records · 2 ramp lanes · 3 trailer spaces
Road isolation	Good	6.9 of 15	some nearby classified roads · 19 MDOT-classified segments within 1.2 km, peak 2,034 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: Moderate — 44% forest and 14% 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

21 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

Bowfin

Channel Catfish

Walleye

Largemouth Bass

White Sucker

Smallmouth Bass

Cisco

Brown Bullhead

Black Crappie

Crappie

Yellow Bullhead

Yellow Perch

Bluegill

Rock Bass

Pumpkinseed

Bluntnose Minnow

Shiner

Blackchin Shiner

Iowa Darter

Sand Shiner

Historically stocked, no recent evidence: Rainbow Trout (last planted 2001) — not shown above.

Fishing rules for this lake Beta

Size and daily limits for the 21 species found here — 20 open to harvest, 1 with a special rule or closed season.

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.

ShinerSpecial rulesMost shiners have no size limit, no possession limit and are open all year. But several Michigan shiners — pugnose, ironcolor, bigmouth, silver and weed shiner — are state-protected and may not be taken. Identify the fish before keeping it.

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).

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.

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

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).

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

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

Brown BullheadOpen 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)

CiscoOpen to harvestMinimum size: no size limit · Daily limit: 5 in any combination (2026 DNR digest · Cisco/Whitefish (NOTE 7)) 5 in any combination of Cisco, Lake Whitefish and Round Whitefish on inland waters; 10 on the Great Lakes, connecting waters and Type F lakes.

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).

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).

Rock BassOpen 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).

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

Smallmouth 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).

WalleyeOpen to harvestMinimum size: 15" · Daily limit: 5 (FO-215 · statewide inland)

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

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

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 · 1998–2025

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.

19Catches recorded

6Species

Bluegill12 recorded · to 11.9″ · latest 2025

Channel Catfish2 recorded · to 29.2″ · latest 2008

Pumpkinseed2 recorded · to 9.2″ · latest 2023

Bowfin1 recorded · to 28.1″ · latest 2008

Crappie1 recorded · to 14.2″ · latest 2002

Smallmouth Bass1 recorded · to 21″ · latest 1998

Biggest on record

Channel Catfish29.2″ · 2008 · still fishing · dead minnow

Channel Catfish28.4″ · 2008 · still fishing · dead minnow

Bowfin28.1″ · 2008 · still fishing · minnow

Smallmouth Bass21″ · 1998 · spincasting

Crappie14.2″ · 2002 · spincasting

Bait: combination (2) · night crawler (2) · dead minnow (2)
Method: still fishing (6) · spincasting (5) · drift fishing (5) · fly fishing (2)

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 2006

797Fish sampled

18Species

Gamefish Smallmouth Bass 71 · Largemouth Bass 38 · Walleye 20 · Northern Pike 1

Panfish Bluegill 321 · Rock Bass 121 · Pumpkinseed 37

All survey species18 species

Gamefish

Smallmouth Bass71 caught · to 19″

Largemouth Bass38 caught · to 15″

Walleye20 caught · to 23″

Northern Pike1 caught

Panfish

Bluegill321 caught · to 9″

Rock Bass121 caught · to 10″

Pumpkinseed37 caught · to 8″

Yellow Perch28 caught · to 8″

Black Crappie2 caught · to 8″

Bullhead & catfish

Yellow Bullhead12 caught · to 13″

Brown Bullhead8 caught · to 14″

Forage & nongame

White Sucker67 caught · to 18″

Sand Shiner24 caught · to 3″

Blackchin Shiner21 caught · to 2″

Bluntnose Minnow20 caught · to 2″

Cisco4 caught · to 16″

Iowa Darter1 caught

Shiner1 caught

Stocking: Fish stocking efforts soon followed this survey which was a typical management practice by the state during the first half of the twentieth century (Cwalinski et al.

Length is the largest fish netted in the survey, not an angler record. Source: Michigan DNR Status of the Fishery Resource report (counts summed across survey years).

DNR stocking

state stocking record · 1979–2026

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

Walleye155,357 stocked · 2006–2026 · 10 plantings

Rainbow trout195,536 stocked · 1979–2001 · 24 plantings

Source: Michigan DNR Fish Stocking Database.

At the lake

community-mapped amenities · straight-line distance

⛻ Campgroundon the lake

🚿 Restrooms / vault toileton the lake · 2 mapped

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

A-1 Woods & Waters Inc.≈5.5 mi141 N State St, Hillman · Google · Apple

Mom & Pop's One Stop≈7.2 mi19991 M 32 W, Hillman · Google · Apple

Jack's Landing Resort≈10.7 mi20836 Tennis Rd, Hillman · 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 84 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 288 acres in Montmorency County, Michigan.

What is the average depth of Long Lake?

The estimated mean depth of Long Lake is 21.1 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, smallmouth bass, walleye, black crappie. The page lists all 21 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.