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Birch Lake
Enhanced dataInteractive depth contours
Birch LakeWashburn County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 85% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 73-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Birch Lake.
Start here
Fishing forecast
Best windows for Birch Lake
Weather-based planning built from the National Weather Service hourly forecast near this lake.
Loading latest forecast…
Checking wind, precipitation, and near-term weather windows.
Water temperature
Birch Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
71°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.
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 Jun 2026Volunteer monitoring 1997–2026
DNR volunteers monitored this lake for about 29 years, ending in 2026. Its final monitored summers showed hazy water (~5.5 ft Secchi) in 2020, high algae (chlorophyll ~31.5 µg/L) in 2025, and elevated nutrients (phosphorus ~37 µg/L) in 2026.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2025 | — | 31.5 µg/L (2) | — |
| 2020 | 5.5 ft (2) | 18.5 µg/L (2) | — |
| 2019 | — | 19.5 µg/L (2) | — |
| 2018 | 4.0 ft (2) | 27.0 µg/L (1) | — |
| 2017 | 2.0 ft (1) | 29.0 µg/L (3) | 47.0 µg/L (1) |
| 2004 | 7.0 ft (2) | 52.0 µg/L (1) | 23.0 µg/L (1) |
Birch Lake - Deep HoleStation 583094
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
Birch Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Birch Lake · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 2113000 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
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.
Fishbrain community activity
Recent catch activity
Aggregated public catch activity matched to Birch Lake. Exact catch locations and angler details are not shown.
Most reported species in this extract
Northern pike17Largemouth bass16Smallmouth bass8Bluegill5Rock bass3Yellow perch2Pumpkinseed2
Catch analytics
Seasonal fish catch patterns
Pick a species to see when anglers reported it, compare against all fish by month, then scan year-by-year catch volume.
Northern pike by monthMonthly reports tagged as Northern pike.
Jan
Feb
Mar
Apr
May
1Jun
Jul
Aug
Sep
Oct
Nov
Dec
All fish by monthTotal public catch reports across every listed species.
Jan
Feb
Mar
Apr
May
3Jun
2Jul
Aug
Sep
Oct
Nov
Dec
Yearly catch view2026 had the most reported catch activity.
20261 Northern pike5 all fish
Recent catch detailsLatest authorized records; measurements appear only when reported.
- Smallmouth bassCommunity report · Jul 3, 2026
- Smallmouth bassCommunity report · Jul 3, 2026
- Northern pikeCommunity report · Jun 27, 2026
- Largemouth bassCommunity report · Jun 27, 2026
- Largemouth bassCommunity report · Jun 14, 2026Released
Catch counts are community reports, not a population survey or a guarantee of current fishing conditions.
View source on Fishbrain364surface acres
73max depth feet
2public access points
45.6685, -91.5482latitude, longitude
Access
Public access points
Boat launchBirch Lake Ramp45.65955, -91.55749Managed by VILLAGEVILLAGE OF BIRCHWOODRamp surface: ConcreteADA-accessible feature: NoVerified 2026-07-12
Boat launchDoolittle Park Boat Ramp45.66216, -91.54942Managed by VILLAGEVILLAGE OF BIRCHWOODRamp surface: PavedADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfishWalleyeSmallmouth Bass
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2021, when 1,840 fish were recorded across 1 entry.
2021
WalleyeMississippi Headwaters · Large Fingerling
1,8407.1 in average
2019
WalleyeMississippi Headwaters · Large Fingerling
1,8095.6 in average
2012
WalleyeMississippi Headwaters · Small Fingerling
12,8801.8 in average
2010
WalleyeMississippi Headwaters · Small Fingerling
12,9871.7 in average
Depth FAQ
How deep is Birch Lake?
Birch Lake is 73 feet deep at its deepest point and averages about 24 feet, according to Wisconsin DNR records.
Is there a free depth map of Birch Lake?
Yes. LakeList publishes a free interactive depth contour map of Birch Lake at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Birch Lake depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
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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