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Wisconsin›Green County›Beckman Lake

Beckman Lake

Enhanced dataInteractive depth contours
--°FLoading forecastWind pendingHumidity pendingPending fishingForecast
Beckman LakeGreen County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Modeled depth estimate · Not a survey · Not for navigation
Source: LakeList depth modelmedium confidence · QA passed · Select a contour to inspect its mapped depthModeled depth estimate: contours computed from the lake's shoreline shape and its documented 12-ft maximum depth (depth grows with distance from shore, calibrated to the documented mean depth where available). This is a smooth mathematical model, not a survey - real holes, bars, and drop-offs will differ. Community sonar (C-MAP Genesis) overlays where recorded. Not for navigation.

LakeList assistant

Plan your lake day

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

Start here

Fishing

Fishing at Beckman Lake

3 notable speciesAngler catch reportsWeather windows

Fishery

Notable species

PanfishLargemouth BassNorthern Pike
Best panfish lakes in Wisconsin →Best largemouth bass lakes in Wisconsin →Best northern pike lakes in Wisconsin →

Angler reports · Fishbrain

What anglers catch here

Anglers have logged 107 catches on Beckman Lake via Fishbrain — 9 in the last 30 days, most recently on Jul 5, 2026.

Most-reported species

  • Largemouth bass76 reports · peaks July
  • Bluegill11 reports
  • Northern pike5 reports
  • Pumpkinseed4 reports
  • Black crappie3 reports

8 of the 107 logged catches didn’t name a species and aren’t listed above.

Seasonality

All fish
Jan
Feb
Mar
9Apr
19May
13Jun
40Jul
Aug
Sep
Oct
Nov
Dec
Monthly reports, all fish: Jan 0 · Feb 0 · Mar 0 · Apr 9 · May 19 · Jun 13 · Jul 40 · Aug 0 · Sep 0 · Oct 0 · Nov 0 · Dec 0.

Of the 107 logged catches, 81 carry a month and 79 carry a year; the charts cover those.

2024 had the most reports (36).

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

Beckman 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 monthJuly · ~78°F
Freezing surfaceJanuary – February
Model depth input12 ft max depth
Monthly Beckman 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.

DNR water check

Water quality quick take

Historical volunteer-monitoring record for this lake.

Last sampled Aug 2019Volunteer monitoring 2016–2019

DNR volunteers monitored this lake for about 3 years, ending in 2019. Its final monitored summers showed murky water (~2.6 ft Secchi) in 2019, elevated algae (chlorophyll ~19.5 µg/L) in 2019, and elevated nutrients (phosphorus ~31 µg/L) in 2017. After 7 years without samples, these readings describe the lake as it was, not as it is.

YearSecchiChlorophyll-aTotal phosphorus
20192.6 ft (3)19.5 µg/L (2)—
20184.5 ft (1)13.0 µg/L (1)—
20175.7 ft (3)16.0 µg/L (3)31.0 µg/L (1)
20166.8 ft (3)7.7 µg/L (3)—
Beckman Lake - Deep HoleStation 233117
Station reports DNR lake record
Historical record only — no current water-quality data exists for this lake. LakeList verified 2026-07-12.

Official Wisconsin information

Plan with DNR sources

LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.

Historical DNR depth maps1 converted map sheetFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance

Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.

Historical Wisconsin DNR maps

Beckman Lake depth maps

1 converted map sheet. These historical surveys are not for navigation.

Original DNR document

Navigable depth map

Beckman Lake · sheet 1

Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.

Full-size image
100% Drag to pan · wheel to zoom
Beckman Lake historical Wisconsin DNR depth map sheet 1

Source: Wisconsin DNR · WBIC 894700 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.

Loading map after the main lake details
Beckman Lake · page 1Green County · WBIC 894700 · 180 KB preview
Map image · alignment review
Full-size map DNR source

Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.

63surface acres
12max depth feet
1public access points
42.5826, -89.7721latitude, longitude

Access

Public access points

Boat launchCadiz Springs State Park42.58396, -89.77125Managed by Wisconsin DNR
DNR verifiedDirections

Nearby

Trip-planning places

No nearby trip-planning places yet

Depth FAQ

How deep is Beckman Lake?

Beckman Lake is 12 feet deep at its deepest point and averages about 7 feet, according to Wisconsin DNR records.

Is there a free depth map of Beckman Lake?

Yes. LakeList publishes a free interactive depth contour map of Beckman Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from LakeList depth model survey data.

Where does the Beckman Lake depth map come from?

The interactive depth contours are derived from LakeList depth model. Each contour set passes a visual QA review against the source document before it is published. The depths are a modeled estimate calibrated to the lake's documented maximum depth - not a survey, and not for navigation.

View the full Beckman Lake depth map →

Trust and freshness

Where this lake data comes from

Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-07-12

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