Dead Lake
Hubbard County, MinnesotaOligotrophic
Dead Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
Trophically, Dead Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 34 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Dead Lake covers 131 acres alongside 2.7 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Among the 77 graded lakes in Hubbard County, Dead Lake ranks 1 — in the top quartile locally.
No invasive species are currently listed at Dead Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 9 documented species — a notable draw for Minnesota anglers. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-25. 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 16 ft down. Phosphorus level: 10 µg/L. Trophic State Index: 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16 ft | A |
| Phosphorus | 10 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 34 ft |
| Surface Area | 130.64 acres |
| Shoreline Length | 2.7 mi |
| Littoral Zone | 41% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Dead Lake (14-day solunar calendar)
→ Is it safe to eat fish from Dead Lake? (mercury & PFAS guide)
→ Dead Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.041 m/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (7 observations).
Estimated open water season: 221 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2025-04-20 (2025) | 2022-05-06 (2022) |
| Ice-In | 2023-11-28 (2023) | 2021-12-07 (2021) |
Most recent ice-out: 2025-04-20
Location
County Ranking
Ranked #1 of 77 lakes in Hubbard County
Nearby Lakes in Hubbard County
More Minnesota Lake Rankings
State Parks Near Dead Lake
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
9 surveys on file from MN DNR Fisheries. Most recent: 2017-07-10 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Black Crappie | 20.69 | 0.3 lb |
| Bluegill | 19.49 | 0.15 lb |
| Yellow Perch | 18.64 | 0.12 lb |
| CNM | 15.30 | — |
| Largemouth Bass | 11.72 | 0.89 lb |
| Bluntnose Minnow | 11.16 | — |
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.
Black Crappie
Bluegill
Yellow Perch
Largemouth Bass
From the 2017-07-10 survey
Dead Lake is located in south-central Hubbard County, five miles north of Dorset. Dead has a surface area of 130 acres and a maximum depth of 34.0 feet. There is no public access on Dead. Dead is connected to Ojibway Lake, which lies to the south, by a small channel. Boating between the two lakes is dependent upon…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Dead Lake. 1 report on file.
- —Fisheries Lake Survey — DeadFisheries 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: 2024-09-25
Monitoring stations: 1