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LakeQuality
A

Burgen Lake

Douglas County, MinnesotaMesotrophic

On the LakeGrade rubric, Burgen Lake pulls an A: clarity at 12.0 ft and 15 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.

A TSI near 42 places Burgen Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Burgen Lake reaches 43 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 174 acres and 2.7 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Burgen Lake ranks 20 of 51 in Douglas County — solidly in the upper half of the local distribution.

Zebra mussel presence at Burgen Lake means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. Walleye are documented at Burgen Lake, one of 18 fish species on record for the lake. A documented public access point at Burgen Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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 2022-09-12. Grade methodology: LakeGrade methodology.

Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 12 ft. Phosphorus level: 15 µg/L. Trophic State Index: 42.

MetricValueGrade
Water Clarity (Secchi Depth)12 ftB
Phosphorus15 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth43 ft
Average Depth31 ft
Surface Area174.39 acres
Shoreline Length2.7 mi
Littoral Zone27%
Public AccessYes

Fish Species

Click a species to see all Minnesota and Wisconsin lakes where it is found.

→ Best fishing times for Burgen Lake (14-day solunar calendar)

→ Is it safe to eat fish from Burgen Lake? (mercury & PFAS guide)

Burgen Lake fishing regulations (limits, seasons, special rules)

Invasive Species

zebra mussel

Water Quality Trend: Improving

Based on 2 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.685 m/yr2

Ice Season

Historical ice data from Minnesota DNR (5 observations).

Typical Ice-Out
Apr 7
EarliestLatest
Ice-Out2016-03-22 (2016)2023-04-25 (2023)
Ice-In2001-12-20 (2001)2001-12-20 (2001)

Most recent ice-out: 2023-04-25

Location

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County Ranking

Ranked #20 of 51 lakes in Douglas County

Nearby Lakes in Douglas County

DNR Fisheries Survey Summary

12 surveys on file from MN DNR Fisheries. Most recent: 2025-07-28 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluntnose Minnow99.05
JND31.57
Largemouth Bass25.980.87 lb
CNM21.33
IOD19.49
Bluegill18.360.19 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

191 fish · 218 in · 2025-07-28
3015024681012141618

Bluegill

321 fish · 38 in · 2025-07-28
97490345678

From the 2025-07-28 survey

Lake Burgen is a 174-acre moderately fertile basin located on the southeast corner of Alexandria in Douglas County. The lake has a relatively unique basin morphology with steep shoreline breaks and limited shallow water area. Maximum and mean depths are approximately 43 and 31 feet, respectively. Lake Burgen lies…

Source: MN DNR LakeFinder Fisheries Lake Survey

DNR Reports & Resources

Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Burgen Lake. 3 reports on file.

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: 2022-09-12

Monitoring stations: 1