Battle Lake
Koochiching County, Minnesota286 acresView mapDirections
Minnesota PCA publishes the water-quality measurements for Battle Lake. Here is what has been measured.
- Mesotrophic
- 9 ft max depth
- Limited data
Battle Lake in Koochiching County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6 ft visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 4.1 µg/L. Maximum depth: 8.5 ft. Surface area: 285.89 acres.
Battle Lake is a 286-acre mesotrophic lake in Koochiching County, Minnesota with a maximum depth of 9 feet. The lake supports 5 documented fish species including black bullhead, brown bullhead, and northern pike. No public access — the lake is private or restricted. Compared to the 2 other monitored lakes in Koochiching County, Battle Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-02. Methodology: how these readings are compared.
What Battle Lake is good for
From access and monitoring records, not editorial picks.
- Fishing5 species recorded
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Battle Lake is safe to swim in today is a call for the Minnesota Pollution Control Agency and the Minnesota DNR and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Battle Lake
These are the measurements Minnesota PCA publishes for Battle Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 6 ft. Phosphorus 29 µg/L. Chlorophyll-a 4.1 µg/L. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 29µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 4.1µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Battle Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Battle Lake typically sits around 73°F at the surface in September. Summer average is about 71°F. Usually warmest in Jul (about 75°F) and coldest in Jun (about 65°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (65°F) to its warmest (75°F).
Typical surface water temperature by month, from 11 field readings (2025–2025) via the EPA Water Quality Portal. See the full Battle Lake water temperature breakdown →
Lake Details
Max depth
8.5 ft
Surface area
286 acres
Shoreline
4.1 mi
Littoral zone
100%
Share shallower than 15 ft
Public access
No
Listed by Minnesota PCA
Lake Size & Watershed
Watershed (drainage) area
4 sq mi
HydroLAKES / HydroSHEDS
Elevation
1,355 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Stays via Stay22
Stays near Battle Lake
Compare lakeside cabins, hotels, and vacation rentals near Battle Lake in Koochiching County, Minnesota — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Battle Lake
Prices for Oct 9–11, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Minnesota’s top lakes →
Follow Battle Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fish Species
Click a species to see every lake where it is documented.
Fishing Battle Lake
Nearby Lakes in Koochiching County
Frequently asked questions about Battle Lake
Where is Battle Lake?
- Battle Lake is a lake in Koochiching County, Minnesota. Its water-quality measurements are published by Minnesota PCA and shown on this page as reported.
What is the water quality of Battle Lake?
- Battle Lake in Koochiching County, Minnesota has water-quality measurements published by Minnesota PCA, shown here as reported. Water clarity: 6 ft visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 4.1 µg/L. Maximum depth: 8.5 ft. Surface area: 285.89 acres.
Is Battle Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Battle Lake?
- Battle Lake typically sits around 73°F at the surface in September, from 11 EPA Water Quality Portal field readings (2025–2025). That is a typical value for the month, not a live reading.
How deep is Battle Lake?
- Battle Lake has a maximum depth of 8.5 feet. The lake covers 285.89 acres.
What fish are in Battle Lake?
- Fish species found in Battle Lake include black bullhead, brown bullhead, northern pike, white sucker, yellow perch. Battle Lake is located in Koochiching County, Minnesota.
Can I fish at Battle Lake?
- Public access to Battle Lake is listed as no on the lake record, so confirm before you make the trip. Seasons, size and bag limits, and whether you need a license are set by Minnesota's fish and wildlife agency, so check its current regulations before you go.
Explore Battle Lake across LakeQuality
Fish species and the cleanest lakes across Minnesota
Fish species and best lakes in Koochiching County
Species activity outlook by water temperature and season
Where to stay at Minnesota's top lakes, each with its readings
Lakes in the Rainy Lake Watershed, ranked by water quality
Minnesota's cleanest lakes, ranked on agency measurements
More lakes in Minnesota
State Parks Near Battle Lake
Other Lakes in Minnesota
Mesotrophic Lakes in Minnesota
Where this data comes from
12 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA12 samples · 2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder