West Silent Lake
Otter Tail County, MinnesotaOligotrophic
West Silent Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Otter Tail County. 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 value of 35 puts West Silent Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. At 58 ft of maximum depth, West Silent Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. The lake's 347 acres and 4.9 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within Otter Tail County's 97 graded waters, West Silent Lake sits at rank 16, near the top of the local distribution.
Zebra mussel presence at West Silent Lake means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. The fishery is bass-led, with 9 documented species across the lake's records. A documented public access point at West Silent 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 2024-09-16. 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 18 ft down. Phosphorus level: 8 µg/L. Trophic State Index: 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18 ft | A |
| Phosphorus | 8 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 58 ft |
| Surface Area | 346.55 acres |
| Shoreline Length | 4.9 mi |
| Littoral Zone | 34% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for West Silent Lake (14-day solunar calendar)
→ Is it safe to eat fish from West Silent Lake? (mercury & PFAS guide)
→ West Silent Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.091 m/yr | 5 |
| Phosphorus | ↓ Declining | +1.95 µg/L/yr | 5 |
Location
County Ranking
Ranked #16 of 97 lakes in Otter Tail County
Nearby Lakes in Otter Tail County
More Minnesota Lake Rankings
State Parks Near West Silent Lake
Other Grade A Lakes in Minnesota
Oligotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2025-05-30 (Targeted Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 44.98 | 0.23 lb |
| Bluntnose Minnow | 40.34 | — |
| Largemouth Bass | 29.33 | 0.64 lb |
| BNS | 14.29 | — |
| JND | 12.50 | — |
| Spottail Shiner | 9.71 | — |
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
Largemouth Bass
From the 2025-05-30 survey
West Silent Lake is a 328-acre mesotrophic (moderately fertile) lake located in north-central Otter Tail County approximately eight miles east of Pelican Rapids, MN. The immediate watershed is composed primarily of agricultural land interspersed with hardwood woodlots. The maximum depth is 58 feet; however, 36% of the…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for West Silent Lake. 3 reports on file.
- —Fisheries Lake Survey — West SilentFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — West SilentFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — West SilentPublic 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: 2024-09-16
Monitoring stations: 2