Landgren Lake
Aitkin County, MinnesotaLimited DataMesotrophic
On the LakeGrade scale Landgren Lake grades a B, with clarity at 13.0 ft and phosphorus readings still being added placing it above the Minnesota median.
The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. A maximum depth of 47 ft puts Landgren Lake in the middle of Minnesota's depth distribution. At 54 acres, Landgren Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Landgren Lake ranks 19 of 53 in Aitkin County — solidly in the upper half of the local distribution.
No invasive species are currently listed at Landgren Lake — the lake remains off the Minnesota infested-waters roster. Bass fishing is part of the appeal: the species list runs to 11, anchored by largemouth and/or smallmouth bass. No formal public access is documented at Landgren Lake — most use is by shoreline residents and their guests. 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 2024-08-16. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 13 ft. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 40 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 47 ft |
| Average Depth | 12 ft |
| Surface Area | 53.56 acres |
| Shoreline Length | 2.1 mi |
| Littoral Zone | 56% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Landgren Lake (14-day solunar calendar)
→ Is it safe to eat fish from Landgren Lake? (mercury & PFAS guide)
→ Landgren 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 | -0.252 m/yr | 5 |
Location
County Ranking
Ranked #19 of 53 lakes in Aitkin County
Cleaner Lakes Within 30 Miles
Landgren Lake holds Grade B. 2 nearby lakes hold higher grades.
Nearby Lakes in Aitkin County
More Minnesota Lake Rankings
State Parks Near Landgren Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
3 surveys on file from MN DNR Fisheries. Most recent: 2001-07-18 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Largemouth Bass | 9.97 | 0.91 lb |
| Bluegill | 9.15 | 0.13 lb |
| Yellow Perch | 6.33 | 0.11 lb |
| Pumpkinseed | 4.64 | 0.21 lb |
| Northern Pike | 3.88 | 2.17 lb |
| Black Bullhead | 3.50 | 0.53 lb |
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.
Largemouth Bass
Bluegill
Yellow Perch
Pumpkinseed
From the 2001-07-18 survey
Bachelor Lake is a moderately fertile 53 acre lake located in Aitkin County just southwest of the city of Aitkin. The shoreline surrounding the lake has minimal development with most of the shoreline made up of marshland, undeveloped forest or woodland, and grassland. The lake is characterized by a larger, deep basin…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Landgren Lake. 2 reports on file.
- —Fisheries Lake Survey — BachelorFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Bachelor (0127)Aquatic Plant Report · MN DNR LakeFinder
EPA Impairment Status
Landgren Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN01-0161-00 · Official waterbody report · Matched by proximity (1.49 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2024-08-16
Monitoring stations: 1