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LakeQuality
C

Snaptail Lake

Itasca County, MinnesotaLimited DataMesotrophic

Snaptail Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Mesotrophic conditions dominate at Snaptail Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. At 70 ft of maximum depth, Snaptail Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. Snaptail Lake covers 175 acres alongside 3.2 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Snaptail Lake ranks 112 of 141 in Itasca County — at the lower end of the locally monitored distribution.

Snaptail Lake has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The fishery includes walleye alongside the lake's other 8 documented species — a notable draw for Minnesota anglers. A documented public access point at Snaptail Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been logged at Snaptail Lake more than two dozen times, putting the median around Apr 14 — a useful baseline for tracking climate trends. 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 2023-09-11. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 9 ft. Trophic State Index: 45.

MetricValueGrade
Water Clarity (Secchi Depth)9 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)45Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth70 ft
Surface Area174.55 acres
Shoreline Length3.2 mi
Littoral Zone33%
Public AccessYes

Fish Species

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

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

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

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

Water Quality Trend: Declining

Based on 4 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.251 m/yr4

Ice Season

Historical ice data from Minnesota DNR (64 observations).

Typical Ice-Out
Apr 14
Typical Ice-In
Nov 21

Estimated open water season: 221 days

EarliestLatest
Ice-Out2012-03-24 (2012)2013-05-11 (2013)
Ice-In1991-11-04 (1991)2016-12-09 (2016)

Most recent ice-out: 2023-05-05

Location

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County Ranking

Ranked #112 of 141 lakes in Itasca County

Nearby Lakes in Itasca County

DNR Fisheries Survey Summary

11 surveys on file from MN DNR Fisheries. Most recent: 2025-08-18 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill20.210.09 lb
Largemouth Bass13.550.54 lb
Tullibee (Cisco)7.212.16 lb
Bluntnose Minnow6.55
SUN3.86
Yellow Perch3.570.11 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

85 fish · 38 in · 2025-08-18
29150345678

Largemouth Bass

3 fish · 56 in · 2025-08-18
21056

Yellow Perch

1 fish · 66 in · 2025-08-18
106

From the 2025-08-18 survey

A targeted survey of nearshore fish species in Snaptail Lake, was conducted on August 18th, 2025, by Lake Biological Monitoring and Assessment (LBMA) Program staff. Sampling sites were evenly spaced around the lake, and each was sampled by backpack electrofishing and seining with a 50-foot seine, where possible.…

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 Snaptail Lake. 4 reports on file.

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: 2023-09-11

Monitoring stations: 1