Twin Lake
Crow Wing County, MinnesotaLimited DataEutrophic
Twin Lake pulls a D on the LakeGrade rubric — phosphorus loading and limited clarity hold it below the Minnesota average. 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.
At a TSI of 54, Twin Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. Twin Lake reaches 30 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 492 acres, Twin Lake fits the Minnesota median for monitored lakes, with 6.6 miles of shoreline. Twin Lake ranks 117 of 120 in Crow Wing County — at the lower end of the locally monitored distribution.
Twin Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery includes walleye alongside the lake's other 13 documented species — a notable draw for Minnesota anglers. Public access is available — the lake is on the Minnesota PCA public-access list. The lake has a long ice-out record — 28 observations on file, with a median ice-out around Apr 14. 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 2024-10-23. Grade methodology: LakeGrade methodology.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 5 ft. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 30 ft |
| Surface Area | 491.76 acres |
| Shoreline Length | 6.6 mi |
| Littoral Zone | 64% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Twin Lake (14-day solunar calendar)
→ Is it safe to eat fish from Twin Lake? (mercury & PFAS guide)
→ Twin 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 | -0.198 m/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (34 observations).
Estimated open water season: 221 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2012-03-23 (2012) | 1996-05-01 (1996) |
| Ice-In | 2014-11-15 (2014) | 2007-12-01 (2007) |
Most recent ice-out: 2015-04-09
Location
County Ranking
Ranked #117 of 120 lakes in Crow Wing County
Nearby Lakes in Crow Wing County
More Minnesota Lake Rankings
State Parks Near Twin Lake
Other Grade D Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2018-08-06 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 18.62 | 0.15 lb |
| Black Crappie | 13.38 | 0.19 lb |
| Largemouth Bass | 5.92 | 1.09 lb |
| Yellow Perch | 5.17 | 0.12 lb |
| Yellow Bass | 3.44 | 0.78 lb |
| Northern Pike | 1.93 | 3.22 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.
Bluegill
Black Crappie
Largemouth Bass
Yellow Perch
From the 2018-08-06 survey
Ross Lake is a 487 acre lake located in northeast Crow Wing County. A public access is located off the northeast corner of the lake. Ross has bog stained water, with a secchi disk reading of 4.0'. Much of the lakeshore is undeveloped and provides critical areas for fish spawning as well as providing habitat for fish…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Twin Lake. 3 reports on file.
- —Fisheries Lake Survey — RossFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Ross (0398)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — RossPublic Water Access Sites · 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: 2024-10-23
Monitoring stations: 2