West Twin Lake
Crow Wing County, MinnesotaOligotrophic
West Twin 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.
A TSI value of 38 puts West Twin Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. The lake bottoms out at 42 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. West Twin Lake covers 127 acres alongside 2.8 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Among the 120 graded lakes in Crow Wing County, West Twin Lake sits at rank 53, above the county median.
No invasive species are currently listed at West Twin Lake — the lake remains off the Minnesota infested-waters roster. Bass fishing is part of the appeal: the species list runs to 12, anchored by largemouth and/or smallmouth bass. Public access is available — the lake is on the Minnesota PCA public-access list. 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 2020-09-16. 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 13.3 ft. Phosphorus level: 9 µg/L. Trophic State Index: 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.3 ft | B |
| Phosphorus | 9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 42 ft |
| Surface Area | 127.49 acres |
| Shoreline Length | 2.8 mi |
| Littoral Zone | 68% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for West Twin Lake (14-day solunar calendar)
→ Is it safe to eat fish from West Twin Lake? (mercury & PFAS guide)
→ West Twin 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 | ↑ Improving | +0.595 m/yr | 5 |
| Phosphorus | ↓ Declining | +0.8 µg/L/yr | 5 |
Location
County Ranking
Ranked #53 of 120 lakes in Crow Wing County
Nearby Lakes in Crow Wing County
More Minnesota Lake Rankings
State Parks Near West Twin Lake
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
7 surveys on file from MN DNR Fisheries. Most recent: 2021-06-15 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 21.45 | 0.15 lb |
| Yellow Bass | 10.60 | 0.36 lb |
| Bluntnose Minnow | 5.76 | — |
| BCS | 5.43 | — |
| BNS | 5.19 | — |
| Largemouth Bass | 4.91 | 0.61 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
Yellow Bass
Largemouth Bass
From the 2021-06-15 survey
A targeted survey of nearshore fish species in West Twin Lake was conducted on June 15-17, 2021 by Index of Biological Integrity (IBI) Program Staff. Nearshore sampling sites were evenly spaced around the lake and each was sampled by backpack electrofishing and seining with a 50-foot seine, where possible. Backpack…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for West Twin Lake. 2 reports on file.
- —Fisheries Lake Survey — West TwinFisheries Lake Survey · MN DNR LakeFinder
- —Public Water Access Sites — West TwinPublic 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
Most recent sample: 2020-09-16
Monitoring stations: 1