Snelling Lake
Hennepin County, MinnesotaLimited DataEutrophic
Snelling Lake earns an F: phosphorus readings still being added and clarity at 1.6 ft signal heavy nutrient loading from the surrounding watershed. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. Snelling Lake is a shallow lake at 10 ft maximum depth, which means it warms quickly, mixes constantly, and amplifies nutrient inputs. Snelling Lake covers 103 acres alongside 1.9 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Snelling Lake sits at rank 64 of 95 in Hennepin County, in the lower half of the local distribution.
Snelling Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery is bass-led, with 10 documented species across the lake's records. 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 2020-09-28. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.6 ft of visibility. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 70 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 9.5 ft |
| Surface Area | 102.58 acres |
| Shoreline Length | 1.9 mi |
| Littoral Zone | 99% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Snelling Lake (14-day solunar calendar)
→ Is it safe to eat fish from Snelling Lake? (mercury & PFAS guide)
→ Snelling Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.117 m/yr | 2 |
Location
County Ranking
Ranked #64 of 95 lakes in Hennepin County
Nearby Lakes in Hennepin County
More Minnesota Lake Rankings
State Parks Near Snelling Lake
Other Grade F Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Fisheries Survey Summary
13 surveys on file from MN DNR Fisheries. Most recent: 2017-06-06 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 30.62 | 0.13 lb |
| Black Bullhead | 15.27 | 0.4 lb |
| Pumpkinseed | 11.92 | 0.09 lb |
| Hybrid Sunfish | 10.82 | 0.1 lb |
| Yellow Bass | 5.81 | 0.36 lb |
| Brown Bullhead | 2.90 | 0.57 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
Black Bullhead
Pumpkinseed
Hybrid Sunfish
From the 2017-06-06 survey
Snelling Lake is located in Fort Snelling State Park, one of the most popular state parks in Minnesota. Shore fishing locations include a pier on the north end of the lake. Boat access is available on the southern end of the lake but gas engines are prohibited. This shallow class 43 lake is heavily vegetated with a…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Snelling Lake. 3 reports on file.
- —Fisheries Lake Survey — SnellingFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — SnellingFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — SnellingPublic 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: 2020-09-28
Monitoring stations: 1