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Round Lake
Enhanced dataInteractive depth contours
Round LakeSawyer 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 99% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 74-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 Round Lake.
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Fishing forecast
Best windows for Round Lake
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Round 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
From Wisconsin DNR / Citizen Lake Monitoring readings at Round Lake - Hinton Bay (RND-1).
Sampled Jul 2026Volunteer monitoring since 1995
Very clear, low-algae water — summer clarity of 22.6 ft puts it among the clearest tenth of monitored Wisconsin lakes.
Based on July–August volunteer averages from 2024–2025; each value shows its own year.32Oligotrophic5-yr summer TSI
Very clear, low-nutrient water — often deep, with limited plant growth.
Water claritySecchi disk depth
22.6 ftJul–Aug 2025 avg (5 readings)
Crystal clearStable since 2011
Clearer than 98% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
2.5 µg/LJul–Aug 2025 avg (2 readings)
Very lowNutrientsTotal phosphorus — fuels plant & algae growth
15.5 µg/LJul–Aug 2024 avg (2 readings)
Low2021–2024
Low phosphorus means light plant/algae growth pressure.
All readings by year · station details · methodology
Summer averages (July/August)
July/August means; counts in parentheses show how many samples went into each average.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2026 | 23.8 ft (1) | — | — |
| 2025 | 22.6 ft (5) | 2.5 µg/L (2) | — |
| 2024 | — | — | 15.5 µg/L (2) |
| 2023 | — | — | 16.3 µg/L (3) |
| 2022 | — | — | 9.0 µg/L (1) |
| 2021 | — | — | 13.0 µg/L (3) |
| 2015 | — | 1.0 µg/L (3) | — |
| 2014 | 19.6 ft (2) | — | — |
| 2013 | 23.7 ft (2) | — | — |
| 2011 | 21.0 ft (3) | — | — |
Latest individual samples: Secchi 23.8 ft (2026-07-06), chlorophyll-a 3 µg/L (2025-08-25), and total phosphorus 17 µg/L (2024-09-10).
Secchi clarity is how deep a black-and-white disk stays visible from the surface — more feet means clearer water.
Chlorophyll-a is an algae pigment; higher values signal more algae in the water column.
Total phosphorus is a nutrient that feeds algae and aquatic plants. It is not a weed survey — depth, bottom type, water movement, and management change the actual lake experience.
Round Lake - Hinton Bay (RND-1)Station 10039033 · TSI based on Secchi
Modeled from DNR/CLMN monitoring — not a safety or swim-condition report. Verify current conditions locally. 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 maps2 converted map sheetsView DNR depth mapHistorical map · not for navigationFishing 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
Round Lake depth maps
2 converted map sheets. These historical surveys are not for navigation.
Navigable depth map
Round 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 2395600 · 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.
Wisconsin DNR fisheries survey
Fish population survey
Structured LakeList extraction from the 2025 DNR fisheries survey. Population estimates, density, and catch-rate indices use different units, methods, and scopes, so each value is presented in its original form rather than normalized against a different measure.
Survey indicatorsValues keep their source unit and method; unlike measures are not scaled or compared.
Management contextThe survey included both Round Lake and Little Round Lake. Wisconsin DNR states that most effort occurred in Round Lake and the results are most representative of Round Lake; the metrics are not relabeled as strictly Round-Lake-only observations.
Wisconsin DNR's 2025 late-spring survey found a low-density, large-bodied muskellunge fishery; high-quality black crappie and northern pike size structure; high smallmouth bass abundance; lower largemouth bass abundance; and modest bluegill size. Walleye were captured but excluded from the report's results because the late timing and sampled habitats did not provide a representative walleye sample.
- Manage Round Lake muskellunge for maximum size at relatively low density; the report notes a 50-inch minimum length and one-fish daily bag limit.
- The restrictive five-fish daily black crappie limit is intended to maintain the lake's high-quality crappie population.
- Do not use the 2025 walleye catch as a population index because DNR says survey timing and habitat made it unrepresentative.
Black crappie
7 fish/net-nightFyke-net CPUE for fish at least 5 inches · p. 299 percentShare at least 8 inches long · p. 293 percentShare at least 10 inches long · p. 2
Bluegill
93 fish/mileElectrofishing CPUE for fish at least 3 inches · p. 330 percentShare at least 6 inches long · p. 30 percentShare at least 8 inches long · p. 3
Largemouth bass
8 fish/mileElectrofishing CPUE for fish at least 8 inches · p. 373 percentShare at least 12 inches long · p. 325 percentShare at least 15 inches long · p. 3
Muskellunge
0.3 fish/net-nightFyke-net CPUE for fish at least 20 inches · p. 1100 percentShare at least 30 inches long · p. 143 percentShare at least 42 inches long · p. 1
Northern pike
1 fish/net-nightFyke-net CPUE for fish at least 14 inches · p. 277 percentShare at least 21 inches long · p. 236 percentShare at least 28 inches long · p. 2
Smallmouth bass
14 fish/mileElectrofishing CPUE for fish at least 7 inches · p. 296 percentShare at least 11 inches long · p. 259 percentShare at least 14 inches long · p. 219 percentShare at least 17 inches long · p. 2
2025 Spring Fisheries Survey Summary: Round Lake, Sawyer CountyMatched by exact wbic and name county · WBICs 2395600 · verified 2026-07-18Wisconsin DNR fisheries survey report; LakeList operator documented permission to leverage this report with source attribution.
3,294surface acres
74max depth feet
3public access points
46.0147, -91.3098latitude, longitude
Access
Public access points
Boat launchRound Lake Access46.03184, -91.30155Managed by TOWNSHIPTOWN OF ROUND LAKERamp surface: GravelADA-accessible feature: NoVerified 2026-07-12
Boat launchRound Lake Access46.02455, -91.32978Managed by TOWNSHIPTOWN OF HAYWARDRamp surface: ConcreteADA-accessible feature: NoVerified 2026-07-12
Boat launchRound Lake Access46.01276, -91.32934Managed by TOWNSHIPTOWN OF HAYWARDRamp surface: ConcreteADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassSmallmouth BassWalleyePanfishMuskyNorthern Pike
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2024, when 1,617 fish were recorded across 1 entry.
2024
MuskellungeUpper Chippewa River · Large Fingerling
1,61713.3 in average
2021
MuskellungeUpper Chippewa River · Large Fingerling
56213.1 in average
2017
MuskellungeUpper Chippewa River · Large Fingerling
37912.3 in average
2014
MuskellungeUpper Chippewa River · Large Fingerling
1,48811.4 in average
2012
MuskellungeUpper Chippewa River · Large Fingerling
2,50012.6 in average
2012
MuskellungeUnspecified · Large Fingerling
1,30012.0 in average
2011
MuskellungeUnspecified · Large Fingerling
1,50012.0 in average
2010
MuskellungeUpper Chippewa River · Large Fingerling
1,51712.2 in average
Depth FAQ
How deep is Round Lake?
Round Lake is 74 feet deep at its deepest point and averages about 33 feet, according to Wisconsin DNR records.
Is there a free depth map of Round Lake?
Yes. LakeList publishes a free interactive depth contour map of Round 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 Round 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 Mapsname, coordinates, county, source identifiers
LakeList record updated 2026-07-14
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