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Michigan›Washtenaw County›Fourmile Lake

Fourmile Lake

Limited dataInteractive depth contours
--°FLoading forecastWind pendingHumidity pendingPending fishingForecast
Fourmile LakeWashtenaw County, MI
Contours load with map
Interactive depth contours5-foot typical interval · Historical planning map · Not for navigation
Source: Michigan DNR Institute for Fisheries Researchmedium confidence · QA passed · Select a contour to inspect its mapped depthHistorical Michigan DNR lake survey contours (deepest mapped contour 18 ft), digitized by the DNR Institute for Fisheries Research from hand-drawn survey maps, largely mid-1900s; the DNR notes these depths have not been re-confirmed by modern survey. The IFR survey's deepest recorded point is 18 ft. Data: Michigan DNR / IFR open data. Not for navigation.

LakeList assistant

Plan your lake day

Fishing spots, food, lodging, marinas, and rentals around Fourmile Lake.

Start here

Fishing

Fishing at Fourmile Lake

Angler catch reportsWeather windows

Angler reports · Fishbrain

What anglers catch here

Anglers have logged 190 catches on Fourmile Lake via Fishbrain — 2 in the last 30 days, most recently on Jul 25, 2026.

Most-reported species

  • Largemouth bass129 reports · peaks July
  • Northern pike16 reports
  • Bluegill13 reports
  • Rock bass7 reports
  • Black crappie3 reports
  • Yellow perch3 reports

19 of the 190 logged catches didn’t name a species and aren’t listed above.

Seasonality

All fish
Jan
Feb
Mar
14Apr
25May
40Jun
41Jul
21Aug
13Sep
4Oct
Nov
Dec
Monthly reports, all fish: Jan 0 · Feb 0 · Mar 0 · Apr 14 · May 25 · Jun 40 · Jul 41 · Aug 21 · Sep 13 · Oct 4 · Nov 0 · Dec 0.

Of the 190 logged catches, 158 carry a month and 146 carry a year; the charts cover those.

2020 had the most reports (42).

Counts reflect reporting activity, not fish populations. Waterbody location is provider-level; exact spots and angler details aren’t shown.

Fishery details for this lakeExplore this area on Fishbrain

NWS weather

Weather windows

Weather-based planning from the National Weather Service hourly forecast near this lake — not a catch forecast.

Loading
Loading latest forecast…

Checking wind, precipitation, and near-term weather windows.

Water temperature

Fourmile Lake water temperature today

Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.

72°FWarm

Seasonal estimate. Checking current National Weather Service air temperatures…

Comfortable summer pattern. Bass and panfish are active; early and late hours beat the midday heat.

Warmest monthAugust · ~77°F
Freezing surfaceJanuary – February
Model depth inputDepth unknown
Monthly Fourmile Lake water temperatures and freeze-up FAQ →

Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.

Unknownsurface acres
Unknownmax depth feet
0public access points
42.3370, -83.9703latitude, longitude

Access

Public access points

No mapped access points yet

LakeList has not matched a public launch, park, or shoreline access point for this lake yet.

Nearby

Trip-planning places

No nearby trip-planning places yet

Depth FAQ

How deep is Fourmile Lake?

Fourmile Lake has surveyed depth contours down to 18 feet, but no separately verified maximum depth is on record yet.

Is there a free depth map of Fourmile Lake?

Yes. LakeList publishes a free interactive depth contour map of Fourmile Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from Michigan DNR Institute for Fisheries Research survey data.

Where does the Fourmile Lake depth map come from?

The interactive depth contours are derived from Michigan DNR Institute for Fisheries Research. Each contour set passes a visual QA review against the source document before it is published. The source is a historical planning survey and is not for navigation.

View the full Fourmile Lake depth map →

Trust and freshness

Where this lake data comes from

USGS GNIS Domestic Namesname, coordinates, county, source identifiers
LakeList record updated 2026-05-23

Keep exploring

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