Silver Lake
Beltrami County, MinnesotaMesotrophic
On the LakeGrade scale Silver Lake grades a B, with clarity at 12.7 ft and phosphorus readings still being added placing it above the Minnesota median. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.
Mesotrophic conditions dominate at Silver Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake's 55 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. The lake's 132 acres and 2.0 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Silver Lake sits at rank 52 of 86 in Beltrami County, in the lower half of the local distribution.
No invasive species are currently listed at Silver Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Silver Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. 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 2024-10-07. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.7 ft. Chlorophyll-a: 6.1 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.7 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 6.1 µg/L | B |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 55 ft |
| Surface Area | 131.75 acres |
| Shoreline Length | 2 mi |
| Littoral Zone | 43% |
| Public Access | Yes |
Water Quality Trend: → Stable
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.265 m/yr | 2 |
| Chlorophyll-a | ↓ Declining | +0.83 µg/L/yr | 2 |
Location
County Ranking
Ranked #52 of 86 lakes in Beltrami County
Nearby Lakes in Beltrami County
More Minnesota Lake Rankings
State Parks Near Silver Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
2 surveys on file from MN DNR Fisheries. Most recent: 1991-08-14 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 45.63 | 0.07 lb |
| Pumpkinseed | 22.24 | 0.14 lb |
| Yellow Perch | 20.75 | 0.37 lb |
| Northern Pike | 8.62 | 1.63 lb |
| Black Crappie | 5.42 | 0.32 lb |
| Largemouth Bass | 1.43 | 0.66 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
From the 1991-08-14 survey
HUGE POPULATION OF STUNTED BLGS. THE BLGS WERE NOT PRESENT DURING THE 1977 SURVEY. THE BLG ARE WELL ABOVE THE 3RD QUARTILE IN NUMBERS THOUGH THEY ARE SMALL - @ 15/LB. PMK ARE WELL ABOVE THE MEDIANS THOUGH GENERALLY LARGER THAN THE BLGS. NOP ARE ALSO WELL ABOVE THE 3RD QUARTILE IN NUMBERS AND WEIGHT. BLC AND LMB…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Silver Lake. 3 reports on file.
- —Fisheries Lake Survey — SilverFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Silver (1744)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — SilverPublic 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: 2024-10-07
Monitoring stations: 1