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Silver Lake

Crow Wing County, MinnesotaLimited DataOligotrophic

Silver Lake earns an A — every scored parameter (clarity) rates among the best monitored waters in Crow Wing County.

A TSI value of 36 puts Silver Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. A maximum depth of 23 ft puts Silver Lake in the middle of Minnesota's depth distribution. Silver Lake covers 208 acres alongside 2.1 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Silver Lake ranks 17 of 120 in Crow Wing County, putting it in the upper tier of locally monitored lakes.

Silver Lake has no invasive species recorded in Minnesota state databases as of 2022, though prevention practices still apply at all access points. The fishery is bass-led, with 6 documented species across the lake's records. Public access is available — the lake is on the Minnesota PCA public-access list. The lake has a long ice-out record — 25 observations on file, with a median ice-out around Apr 13. 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 2022-09-11. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Crystal clear, you can see 17 ft down. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)17 ftA
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth23 ft
Surface Area208.41 acres
Shoreline Length2.1 mi
Littoral Zone93%
Public AccessYes

Fish Species

bluegill,largemouth bass,pumpkinseed,sunfish,yellow bullhead,yellow perch

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

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

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

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

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.328 m/yr5
See year-by-year chart →

Ice Season

Historical ice data from Minnesota DNR (39 observations).

Typical Ice-Out
Apr 13
Typical Ice-In
Nov 25

Estimated open water season: 226 days

EarliestLatest
Ice-Out2000-03-24 (2000)2022-04-28 (2022)
Ice-In1988-10-29 (1988)1990-12-25 (1990)

Most recent ice-out: 2022-04-28

Location

Loading map…

County Ranking

Ranked #17 of 120 lakes in Crow Wing County

Nearby Lakes in Crow Wing County

DNR Fisheries Survey Summary

5 surveys on file from MN DNR Fisheries. Most recent: 2015-08-17 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill57.320.15 lb
SUN37.21
Brown Bullhead20.570.37 lb
Yellow Bass10.090.29 lb
Northern Pike10.071.91 lb
Pumpkinseed8.970.1 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

631 fish · 37 in · 2015-06-08
471236034567

Brown Bullhead

91 fish · 711 in · 2015-06-08
673407891011

Yellow Bass

128 fish · 512 in · 2015-06-08
4422056789101112

Northern Pike

160 fish · 934 in · 2015-06-08
2412010121416182022242628303234

From the 2015-08-17 survey

Silver Lake is a 214 acre lake located four miles northeast of Merrifield in Crow Wing County. Silver has a maximum depth of 23'. A nearshore survey was conducted to assess the populations of both game and non-game fish species. Ten 100' long sampling stations were evenly spaced around the lakeshore. Each station was…

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 Silver Lake. 2 reports on file.

EPA Impairment Status

Silver Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit MN18-0305-00 · Official waterbody report · Matched by proximity (2.57 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

Ice data from Minnesota DNR Climate

Most recent sample: 2022-09-11

Monitoring stations: 1