Greigs Lake
Pine County, MinnesotaLimited DataMesotrophic
On the LakeGrade scale Greigs Lake grades a B, with clarity at 12.6 ft and phosphorus readings still being added placing it above the Minnesota median.
A TSI near 41 places Greigs Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Greigs Lake is unusually deep for Minnesota at 68 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. The lake is compact at 55 acres, with 1.2 miles of shoreline and little volume to buffer nutrient inputs. Greigs Lake ranks 8 of 19 in Pine County — solidly in the upper half of the local distribution.
No invasive species are currently listed at Greigs Lake — the lake remains off the Minnesota infested-waters roster. The fishery is bass-led, with 9 documented species across the lake's records. No formal public access is documented at Greigs Lake — most use is by shoreline residents and their guests. 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 2022-09-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.6 ft. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.6 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 68 ft |
| Average Depth | 18 ft |
| Surface Area | 55.39 acres |
| Shoreline Length | 1.2 mi |
| Littoral Zone | 45% |
| Public Access | No |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Greigs Lake (14-day solunar calendar)
→ Is it safe to eat fish from Greigs Lake? (mercury & PFAS guide)
→ Greigs Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #8 of 19 lakes in Pine County
Nearby Lakes in Pine County
More Minnesota Lake Rankings
State Parks Near Greigs 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: 1993-06-16 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Largemouth Bass | 19.04 | 0.67 lb |
| Bluegill | 14.83 | 0.08 lb |
| Pumpkinseed | 5.42 | 0.2 lb |
| Brown Bullhead | 3.39 | 0.78 lb |
| Northern Pike | 1.96 | 2.01 lb |
| Yellow Bass | 1.33 | 0.28 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.
Largemouth Bass
Bluegill
Pumpkinseed
Brown Bullhead
From the 1993-06-16 survey
On June 16, 1993, a lake survey was conducted on Greigs Lake (lake class 20). Standard netting and electrofishing methods were used to evaluate the present fish population status. Greigs is managed for largemouth bass, northern pike, and panfish, however, little can be done to this lake due to its small size and lack…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Greigs Lake. 2 reports on file.
- —Fisheries Lake Survey — GreigsFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Greigs (0385)Aquatic Plant Report · 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: 2022-09-08
Monitoring stations: 2