Minnesota Lake Depths
NESW

Iron Chief Complex Lake

St. Louis County, Minnesota · MN DNR bathymetric survey
260ft Max
depth
207 acres 13 contours
Paddling Index58MixedMedium confidencesheltered geometry · wooded shoreline
Get directions

Depth scale

The lake

Survey readout

Iron Chief Complex Lake is mapped to a depth of 260 ft on the Minnesota DNR survey and covers about 207 acres in St. Louis County, Minnesota.

Measured from the Minnesota DNR lake bathymetric contour survey.

Deepest mapped contour
260 ft
Surface area
207 acres
Shoreline
3.66 mi · irregular
Aquatic vegetation
0% of surface · NDVI estimate
Public access
No public DNR launch identified
Additional depth details13 contours
Contour depths
0–260 ft
Recorded point soundings
260 ft, 180 ft, 180 ft, 100 ft, 80 ft
Compare with another lake
Chart data

Provenance

Sources: MN DNR Lake Bathymetric Contours, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL).

⚠ Not for navigation

Spot an error? Send a correction

Map details & sources4 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. Color shows surveyed depth; dark lines are the survey's own isobaths.

Coordinates
47.50169, -92.77737
MN DNR lake ID
69142800
Vertical exaggeration
1.4×
Basemap
USDA NAIP · public domain
Model size
2.6 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-25
58 / 100MixedData confidence: Medium

Iron Chief Complex Lake has a mostly natural, lightly developed setting, generally sheltered geometry, some nearby classified roads.

Why this score?5 components

Included in the index

ComponentRatingPoints of weightMeasurement
Natural settingVery Good28.1 of 4372% natural land cover within 150 m of shore (65% forest, 1% wetland; 17% developed)
Geometric wind exposureVery Good19.9 of 36mean fetch 1,167 m · 0% of sampled water within 500 m of shelter · generally short fetch
Motor & speed rulesNot modeled—Minnesota’s lake-by-lake motor, speed and no-wake rules are mostly county and city ordinances, not map data, so they are not part of the Minnesota index. Check local signage and ordinances before going out.
Public accessNot listed—No public access site of this lake’s own in the MN DNR water access and fishing site records. Private, commercial and informal launches are not all in these records, so this is not evidence that access is poor — the component is excluded and the remaining weights are renormalized.
Road isolationGood9.8 of 21some nearby classified roads · 9 MnDOT-classified segments within 1.2 km, peak 8,401 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 0% 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 — 65% forest and 1% wetland cover within 150 m of shore
How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public land-cover, access and traffic-count 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 for Minnesota lakes: natural setting 35%, geometric wind exposure 29%, public access 18%, road isolation 18%. Motor, speed and no-wake rules are not modeled for Minnesota, and traffic counts cover state, county and some city roads but not township roads. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Minnesota scores are relative to other Minnesota lakes and are not directly comparable with Paddling Index scores on our sister sites, which use different data sources, some with a watercraft-rules component. Sources: MN DNR lake bathymetry outline, USGS/MRLC NLCD Land Cover (2021) and MnDOT Annual Average Daily Traffic (counts 2019–2025). Conditions change quickly — check current weather and local conditions before going out.

Fish you might catch

from DNR surveys & active stocking

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

Lake Troutstocked
White Sucker
Rainbow Smelt
Blacknose Shiner
Compiled from Minnesota DNR fishery surveys and Minnesota 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.

Fishery

surveyed 2008
81Fish sampled
8Species

Gamefish Northern Pike 1

Panfish Green Sunfish 34 · Bluegill 3 · Black Crappie 2

All survey species8 species

Gamefish

Northern Pike1 caught · to 28″

Panfish

Green Sunfish34 caught · to 5″
Bluegill3 caught
Black Crappie2 caught · to 12″

Bullhead & catfish

Black Bullhead1 caught · to 11″

Forage & nongame

Rainbow Smelt36 caught · to 9″
White Sucker3 caught · to 19″
Blacknose Shiner1 caught
Length is the largest fish netted in the survey, not an angler record. Source: Minnesota DNR lake survey (LakeFinder).

DNR stocking

state stocking record · 2016–2025

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

Lake Trout10,088 stocked · 2016–2025 · 9 plantings
Source: Minnesota DNR LakeFinder stocking report. LakeFinder lists the last 10 years of stocking only.

Infested waters listing

Not on the Minnesota DNR’s infested waters list as of September 9, 2026. This does not mean the lake is free of invasive species: the list covers certain species only, and a species can be present before anyone finds it.

What does the infested waters list mean?

The Minnesota DNR lists a lake, river, pond or wetland as infested when it contains an aquatic invasive species that could spread to other waters, or when it is connected to a water where one is present. Activities such as bait harvest and water use are managed differently on infested waters. Check the current list before moving water, bait or equipment.

Source: Minnesota Department of Natural Resources. List of Infested Waters, September 9, 2026. https://www.dnr.state.mn.us/invasives/ais/infested.html

Quick answers

Iron Chief Complex Lake — common questions

How deep is Iron Chief Complex Lake?

The deepest contour on the Minnesota DNR bathymetric survey of Iron Chief Complex Lake is 260 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 Iron Chief Complex Lake?

Iron Chief Complex Lake covers about 207 acres in St. Louis County, Minnesota.

What fish are in Iron Chief Complex Lake?

Species with survey, catch or recent-stocking evidence include lake trout, northern pike, black bullhead, black crappie, bluegill, green sunfish. The page lists all 9 species and the evidence behind each.

Is there public access to Iron Chief Complex Lake?

No public launch for Iron Chief Complex Lake appears in the Minnesota DNR access data. That is not the same as the lake being private -- private and commercial launches are not in that source.