Hunter Lake
Cass County, MinnesotaOligotrophic
On the LakeGrade rubric, Hunter Lake pulls an A: clarity at 31.0 ft and 11 µg/L of phosphorus put it in the top bracket for Minnesota. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
Trophically, Hunter Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. Hunter Lake reaches 48 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 182 acres, Hunter Lake fits the Minnesota median for monitored lakes, with 2.6 miles of shoreline. Among the 133 graded lakes in Cass County, Hunter Lake ranks 24 — in the top quartile locally.
Hunter Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Hunter Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Hunter Lake — most use is by shoreline residents and their guests. The lake has a partial ice record — 11 observed ice-outs, centered near Apr 22. 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 2023-09-17. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 31 ft down. Phosphorus level: 11 µg/L. Trophic State Index: 33.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 31 ft | A |
| Phosphorus | 11 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 33 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 48 ft |
| Surface Area | 181.82 acres |
| Shoreline Length | 2.6 mi |
| Littoral Zone | 29% |
| Public Access | No |
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -1.446 m/yr | 5 |
| Phosphorus | → Stable | +0.2 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (21 observations).
Estimated open water season: 223 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2000-04-05 (2000) | 2022-05-08 (2022) |
| Ice-In | 2014-11-12 (2014) | 2021-12-26 (2021) |
Most recent ice-out: 2022-05-08
Location
County Ranking
Ranked #24 of 133 lakes in Cass County
Nearby Lakes in Cass County
More Minnesota Lake Rankings
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
3 surveys on file from MN DNR Fisheries. Most recent: 1987-08-31 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 11.12 | 0.17 lb |
| Rock Bass | 8.06 | 0.31 lb |
| Yellow Perch | 4.25 | 0.27 lb |
| White Sucker | 4.25 | 2.51 lb |
| Smallmouth Bass | 3.60 | 1.02 lb |
| Northern Pike | 1.25 | 5.9 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1987-08-31 survey
Numbers/Set (Lbs./fish) NOP BLG SMB LMB WAE1987 1.0(9.7) 6.1(0.19) 8.7(1.8) 1.3(0.72) 1.7(5.4)1969 1.5(2.1) 36.0(0.20) 1.5(0.73) 1.5(0.48) 1.0(10.5)Northern Pike - Gillnet catches indicate a low population of large fish. No year classes beyond 1979 were present indicating limited natural reproduction.Bluegill -…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Hunter Lake. 1 report on file.
- —Fisheries Lake Survey — HunterFisheries Lake Survey · 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: 2023-09-17
Monitoring stations: 2