Snail Lake
Ramsey County, MinnesotaMesotrophic
On the LakeGrade scale Snail Lake grades a B, with clarity at 11.0 ft and 20 µg/L of phosphorus placing it above the Minnesota median. 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 near 45 places Snail Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 30 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 158 acres, Snail Lake fits the Minnesota median for monitored lakes, with 2.4 miles of shoreline. Snail Lake ranks 4 of 49 in Ramsey County, putting it in the upper tier of locally monitored lakes.
Snail Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. The fishery includes walleye alongside the lake's other 11 documented species — a notable draw for Minnesota anglers. A documented public access point at Snail Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 13 times at Snail Lake, with a median around Apr 4. 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 2024-09-16. 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 11 ft. Phosphorus level: 20 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11 ft | B |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 30 ft |
| Surface Area | 158.43 acres |
| Shoreline Length | 2.4 mi |
| Littoral Zone | 82% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Snail Lake (14-day solunar calendar)
→ Is it safe to eat fish from Snail Lake? (mercury & PFAS guide)
→ Snail Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.03 m/yr | 5 |
| Phosphorus | → Stable | +0.3 µg/L/yr | 5 |
Ice Season
Historical ice data from Minnesota DNR (23 observations).
Estimated open water season: 239 days
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 2024-03-03 (2024) | 2014-04-21 (2014) |
| Ice-In | 2014-11-21 (2014) | 2004-12-14 (2004) |
Most recent ice-out: 2024-03-03
Location
County Ranking
Ranked #4 of 49 lakes in Ramsey County
Nearby Lakes in Ramsey County
More Minnesota Lake Rankings
State Parks Near Snail Lake
Other Grade B Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2016-07-12 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 26.42 | 0.1 lb |
| Brown Bullhead | 14.76 | 0.31 lb |
| BKF | 11.13 | — |
| Black Bullhead | 10.62 | 0.39 lb |
| Northern Pike | 8.07 | 1.68 lb |
| Pumpkinseed | 6.33 | 0.13 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
Brown Bullhead
Black Bullhead
Northern Pike
From the 2016-07-12 survey
Snail Lake is a 148 acre class 38 lake located in northern Ramsey County. Snail Lake is primarily managed for Largemouth Bass and Northern Pike, with Walleye and Bluegill as secondary management species. Walleye fry are stocked biennially at a rate of 2,000 per littoral acre (260,000 fry). Snail Lake experienced a…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Snail Lake. 3 reports on file.
- —Fisheries Lake Survey — SnailFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — SnailFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — SnailPublic 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
Ice data from Minnesota DNR Climate
Most recent sample: 2024-09-16
Monitoring stations: 2