Lake Ann

Menominee County, Michigan · MI DNR bathymetric survey

29ft Max
depth

22 acres 7 contours Public access

Paddling Index89Very Goodaway from major roads · high-speed boating prohibited · sheltered geometry

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Depth scale

05101520252729

The lake

Survey readout

Lake Ann is mapped to a depth of 29 ft on the Michigan DNR survey and covers about 22 acres in Menominee County, Michigan.

Measured from the Michigan DNR inland-lake contour survey.

Deepest sounding: 29 ft
Mean depth: 16.4 ft · estimated
Surface area: 22 acres
Estimated volume: 363 acre-ft · 118M gal
Shoreline: 0.82 mi · lobed
Aquatic vegetation: 8% of surface · NDVI estimate
Public access: Boat Launch

Additional depth details7 contours

Contour depths: 0–29 ft
Recorded point soundings: 29 ft, 27 ft

25.2% of the surface sits over water shallower than 10 ft; 48.9% 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 Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.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

Menominee County, Michigan · all 7 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: 45.45602, -87.75007
MI DNR lake ID: L45623
Vertical exaggeration: 2.69×
Basemap: USDA NAIP · public domain
Model size: 1.3 MB

Watercraft rules

county-enforced local controls · MI DNR

High-speed boating prohibitedwhole lake, as mapped

Official rule details1 rule

High-speed boating prohibited“High-speed boating and water skiing prohibited”

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

89 / 100Very GoodData confidence: High

Lake Ann has a heavily wooded and largely undeveloped setting, well sheltered geometry, little nearby major-road exposure. Watercraft controls: High-speed boating prohibited.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Excellent	25.4 of 30	80% natural land cover within 150 m of shore (22% forest, 57% wetland; 2% developed)
Geometric wind exposure	Excellent	25.0 of 25	mean fetch 331 m · 100% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controls	High-speed boating prohibited	12.8 of 15	High-speed boating prohibited
Public access	Good	12.8 of 15	1 site with DNR boating-facility records · 1 ramp lane · 2 trailer spaces
Road isolation	Excellent	13.5 of 15	relatively isolated from major roads · 2 MDOT-classified segments within 1.2 km, peak 129 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: Moderate — narrow in places — wakes would carry across parts of the lake
Aquatic vegetation: Low — approximately 8% 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 — 22% forest and 57% 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

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

Bowfin

Fishing rules for this lake Beta

Size and daily limits for the 1 species found here — 1 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.

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

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.

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

Official rule text for this lake

“no size limit on Northern Pike and up to five (5) Northern Pike may be retained in the daily possession limit with only one (1) 24-inches or greater. (Lake Ann water shall expire on September 15, 2028).” — FO-206

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. 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 · 2022

One Master Angler catch is on record for this lake: 28.8″ bowfin in 2022 on live bait.

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.

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.

Quick answers

Lake Ann — common questions

How deep is Lake Ann?

The deepest contour on the Michigan DNR bathymetric survey of Lake Ann is 29 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 Lake Ann?

Lake Ann covers about 22 acres in Menominee County, Michigan.

What is the average depth of Lake Ann?

The estimated mean depth of Lake Ann is 16.4 ft, calculated from the survey contours.

What fish are in Lake Ann?

Species with survey, catch or recent-stocking evidence include bowfin. The page shows the evidence behind each.

Is there public access to Lake Ann?

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