Williams Lake

Barry County, Michigan · MI DNR bathymetric survey

20ft Max
depth

19 acres 4 contours Public access

Paddling Index84Very Goodsheltered geometry · wooded shoreline

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Depth scale

05101520

The lake

Survey readout

Williams Lake is mapped to a depth of 20 ft on the Michigan DNR survey and covers about 19 acres in Barry County, Michigan.

Measured from the Michigan DNR inland-lake contour survey (depths read from the survey's isobath field; this lake's summary-depth column is blank in the source).

Deepest mapped contour: 20 ft
Mean depth: 7.9 ft · estimated
Surface area: 19 acres
Estimated volume: 151 acre-ft · 49M gal
Shoreline: 1 mi · irregular
Aquatic vegetation: 7% of surface · NDVI estimate
Public access: Boat Launch · Rec Passport
In: Yankee Springs Recreation Area · 4,647 ac

Additional depth details4 contours

Contour depths: 0–20 ft
Recorded point soundings: 20 ft

62.9% of the surface sits over water shallower than 10 ft; 4.1% 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 Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.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

Barry County, Michigan · 15 nearest of 47 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: 42.63129, -85.49873
MI DNR lake ID: L15901
Vertical exaggeration: 3.0×
Basemap: USDA NAIP · public domain
Model size: 1.5 MB

Paddling

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

84 / 100Very GoodData confidence: High

Williams Lake has a heavily wooded and largely undeveloped setting, well 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	30.0 of 30	99% natural land cover within 150 m of shore (16% forest, 83% wetland; 0% developed)
Geometric wind exposure	Excellent	25.0 of 25	mean fetch 219 m · 100% of sampled water within 500 m of shelter · short fetch in most directions
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	8.4 of 15	some nearby classified roads · 8 MDOT-classified segments within 1.2 km, peak 3,458 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 7% 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 — 16% forest and 83% 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).

Pumpkinseed

Fishing rules for this lake Beta

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

PumpkinseedSpecial rulesNamed in a fisheries order for this lake — see the rule text below

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.

PumpkinseedSpecial rulesNamed in a fisheries order for this lake — see the rule text below

Official rule text for this lake

“the fishing season shall be the last Saturday in April through December 15, inclusive. The daily possession limit is zero (0).” — 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 · 2006

One Master Angler catch is on record for this lake: 9.5″ pumpkinseed in 2006 on wax 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.

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≈1.2 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

Yankee Springs Marathon≈0.6 mi · (269) 795-780611300 W M-179 Hwy, Middleville · Google · Apple

Gillett's Bait & Hardware≈3.3 mi · (269) 672-537112258 Marsh Rd, Shelbyville · Google · Apple

Wayland Hardware and Point≈8.4 mi415 Reno Dr, Wayland · 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

Williams Lake — common questions

How deep is Williams Lake?

The deepest contour on the Michigan DNR bathymetric survey of Williams Lake is 20 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 Williams Lake?

Williams Lake covers about 19 acres in Barry County, Michigan.

What is the average depth of Williams Lake?

The estimated mean depth of Williams Lake is 7.9 ft, calculated from the survey contours.

What fish are in Williams Lake?

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

Is there public access to Williams Lake?

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