Battle Lake
Itasca County, MinnesotaMesotrophic
Battle Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
Mesotrophic conditions dominate at Battle Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 15 ft puts Battle Lake in the middle of Minnesota's depth distribution. At 243 acres, Battle Lake fits the Minnesota median for monitored lakes, with 3.5 miles of shoreline. Battle Lake sits at rank 78 of 141 in Itasca County, in the lower half of the local distribution.
Battle Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Walleye are documented at Battle Lake, one of 11 fish species on record for the lake. No formal public access is documented at Battle Lake — most use is by shoreline residents and their guests. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-23. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 15 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.2 ft | C |
| Phosphorus | 15 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 15 ft |
| Surface Area | 243.32 acres |
| Shoreline Length | 3.5 mi |
| Littoral Zone | 100% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Battle Lake (14-day solunar calendar)
→ Is it safe to eat fish from Battle Lake? (mercury & PFAS guide)
→ Battle Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.267 m/yr | 5 |
| Phosphorus | ↓ Declining | +1.33 µg/L/yr | 4 |
Ice Season
Historical ice data from Minnesota DNR (6 observations).
Estimated open water season: 216 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2005-04-14 (2005) | 2008-05-02 (2008) |
| Ice-In | 2003-11-05 (2003) | 2004-11-24 (2004) |
Most recent ice-out: 2008-05-02
Location
County Ranking
Ranked #78 of 141 lakes in Itasca County
Nearby Lakes in Itasca County
More Minnesota Lake Rankings
State Parks Near Battle Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
14 surveys on file from MN DNR Fisheries. Most recent: 2018-07-16 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| IOD | 11.65 | — |
| Yellow Perch | 6.28 | 0.17 lb |
| Bluegill | 5.53 | 0.41 lb |
| Bluntnose Minnow | 4.14 | — |
| Northern Pike | 3.99 | 1.51 lb |
| CNM | 3.64 | — |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Yellow Perch
Bluegill
Northern Pike
From the 2018-07-16 survey
Battle Lake is a 199 acre lake located east of Effie, MN in the Bigfork River watershed. The lake has a maximum depth of 15 feet and is part of a navigable chain of lakes including Pickerel and Deer Lakes. The lake has limited development, and the primary access is through a shallow channel from Pickerel Lake. All…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Battle Lake. 2 reports on file.
- —Fisheries Lake Survey — BattleFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Battle (0791)Aquatic Plant Report · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Ice data from Minnesota DNR Climate
Most recent sample: 2024-09-23
Monitoring stations: 2