Long Lake

Iron County, Michigan · MI DNR bathymetric survey

105ft Max
depth

62 acres 15 contours Public access

Paddling Index81Very Goodaway from major roads · sheltered geometry · whole-lake slow-no-wake

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Depth scale

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The lake

Survey readout

Long Lake is mapped to a depth of 105 ft on the Michigan DNR survey and covers about 62 acres in Iron County, Michigan.

Measured from the Michigan DNR inland-lake contour survey.

Deepest sounding: 105 ft
Mean depth: 33.7 ft · estimated
Surface area: 62 acres
Estimated volume: 2,071 acre-ft · 675M gal
Shoreline: 1.71 mi · irregular
Aquatic vegetation: 1% of surface · NDVI estimate
Public access: Boat Launch

Additional depth details15 contours

Contour depths: 0–105 ft
Recorded point soundings: 105 ft

23% of the surface sits over water shallower than 10 ft; 64% is deeper than 20 ft. Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.

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Location

Iron County, Michigan · 15 nearest of 81 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: 46.11993, -88.45147
MI DNR lake ID: L45289
Vertical exaggeration: 1.4×
Basemap: USDA NAIP · public domain
Model size: 2.5 MB

Watercraft rules

county-enforced local controls · MI DNR

Slow — no wakewhole lake, as mapped

Official rule details1 rule

Slow — no wake“Slow--no wake speed”

Where the mapped control areas and the official regulation language differ, the language governs. Official county watercraft controls.

Paddling

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

81 / 100Very GoodData confidence: High

Long Lake has a mostly natural, lightly developed setting, well sheltered geometry, little nearby major-road exposure. Watercraft controls: Whole-lake slow-no-wake.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Very Good	19.1 of 30	68% natural land cover within 150 m of shore (37% forest, 31% wetland; 25% developed)
Geometric wind exposure	Excellent	21.4 of 25	mean fetch 597 m · 21% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controls	Whole-lake slow-no-wake	13.8 of 15	Slow — no wake
Public access	Good	12.8 of 15	1 site with DNR boating-facility records · 1 ramp lane · 4 trailer spaces
Road isolation	Excellent	13.9 of 15	relatively isolated from major roads · 2 MDOT-classified segments within 1.2 km, peak 82 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 — 37% forest and 31% 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 & active stocking

2 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).

Rainbow Troutstocked

Bluegill

Historically stocked, no recent evidence: Lake Trout (last planted 2011), Brook Trout (last planted 2008), Splake (last planted 2005), Rainbow Smelt (last planted 1987) +1 more — 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.

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).

Rainbow TroutOpen to harvestMinimum size: 8" · Daily limit: 5 (FO-254 · unclassified inland lake) Five (5) trout, no more than three (3) trout 15 inches or greater.

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.

Rainbow TroutOpen to harvestMinimum size: 8" · Daily limit: 5 (FO-254 · unclassified inland lake) Five (5) trout, no more than three (3) trout 15 inches or greater.

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 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 · 1996

One Master Angler catch is on record for this lake: 10.5″ bluegill in 1996 on worm.

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.

DNR stocking

state stocking record · 1979–2018

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

Rainbow trout55,895 stocked · 1979–2018 · 25 plantings

Complete stocking history5 older species

Lake trout20,738 stocked · 1987–2011 · 12 plantings

Brook trout7,965 stocked · 2003–2008 · 2 plantings

Splake13,126 stocked · 1981–2005 · 6 plantings

Rainbow smelt14,000 stocked · 1987

Walleye6,096 stocked · 1984–1986 · 2 plantings

Source: Michigan DNR Fish Stocking Database.

Non-native species records

1 record

Other invertebrates

Freshwater Jellyfish

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 distance

Crystal Bait≈5.8 mi · (906) 875-4434520 Crystal Falls, Crystal Falls · Google · Apple

Superior Sport & Feed LL LLC≈6.2 mi · (906) 841-113131 Superior Ave, Crystal Falls · Google · Apple

Luckey's Sport Shop≈6.5 mi3237 US Hwy, Iron River · 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 105 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 62 acres in Iron County, Michigan.

What is the average depth of Long Lake?

The estimated mean depth of Long Lake is 33.7 ft, calculated from the survey contours.

What fish are in Long Lake?

Species with survey, catch or recent-stocking evidence include rainbow trout, bluegill. The page shows 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.