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Loon Lake
Enhanced dataHistorical depth chart
Loon LakeAshland County, WI
Historical source depth chart available1 converted source DNR map sheet can be panned and zoomed in the browser. Interactive contours stay hidden until visual QA passes. Historical survey — not for navigation.
View browser depth chartLakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Loon Lake.
Start here
Fishing forecast
Best windows for Loon 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
Loon Lake water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
73°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 Jul 1979
The last DNR samples for this lake are from 1979, when the water showed low algae (chlorophyll ~5 µg/L) and elevated nutrients (phosphorus ~36 µg/L). After 47 years without samples, these readings describe the lake as it was, not as it is.
The DNR station record reports activity through 2025, but LakeList holds no readings after 1979 — check the station reports for anything newer.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 1979 | — | 5.0 µg/L (1) | 36.0 µg/L (1) |
Loon Lake - Loon LakeStation 024007
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
Loon Lake depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Loon 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 2767300 · 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.
32surface acres
23max depth feet
1public access points
46.3502, -90.6463latitude, longitude
Access
Public access points
Boat launchCopper Falls State Park Canoe Launch46.35002, -90.64878Managed by STATE(DNR)TOWN OF MORSERamp surface: GravelLanding type: CARRY-INADA-accessible feature: NoVerified 2026-07-12
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfish
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2022, when 1,580 fish were recorded across 1 entry.
2022
Largemouth BassUnspecified · Large Fingerling
1,5802.7 in average
Depth FAQ
How deep is Loon Lake?
Loon Lake is 23 feet deep at its deepest point and averages about 9 feet, according to Wisconsin DNR records.
Is there a free depth map of Loon Lake?
Yes. 1 scanned Wisconsin DNR lake survey map sheet is free to view and zoom on LakeList. These historical surveys are not for navigation.
Where does the Loon Lake depth map come from?
The map sheets are converted from official Wisconsin DNR lake survey documents, with the source URL, checksum, and retrieval date retained for every sheet. Historical surveys are not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Pagesname, coordinates, county, source identifiers
LakeList record updated 2026-05-25
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