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LakeQuality
B

Leavitt Lake

Cass County, MinnesotaMesotrophic

On the LakeGrade scale Leavitt Lake grades a B, with clarity at 8.4 ft and 19 µg/L of phosphorus placing it above the Minnesota median. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. The lake's 60 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. At 122 acres, Leavitt Lake fits the Minnesota median for monitored lakes, with 3.8 miles of shoreline. Leavitt Lake sits at rank 98 of 133 in Cass County, in the lower half of the local distribution.

Leavitt Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Leavitt Lake's fishery is anchored by muskellunge, with 15 documented species in total — a destination water for muskie anglers. A documented public access point at Leavitt Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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 2024-09-14. Grade methodology: LakeGrade methodology.

Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Moderate clarity, visible to about 8.4 ft. Phosphorus level: 19 µg/L. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)8.4 ftC
Phosphorus19 µg/LA
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth60 ft
Surface Area121.53 acres
Shoreline Length3.8 mi
Littoral Zone31%
Public AccessYes

Fish Species

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

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

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

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

Water Quality Trend: Declining

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Declining-0.175 m/yr5
Phosphorus Stable-0.35 µg/L/yr5

Ice Season

Historical ice data from Minnesota DNR (5 observations).

Typical Ice-Out
Apr 22
EarliestLatest
Ice-Out2020-04-17 (2020)1995-04-23 (1995)
Ice-In2019-11-07 (2019)2018-11-13 (2018)

Most recent ice-out: 2020-04-17

Location

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County Ranking

Ranked #98 of 133 lakes in Cass County

Nearby Lakes in Cass County

DNR Fisheries Survey Summary

10 surveys on file from MN DNR Fisheries. Most recent: 2023-07-05 (Targeted Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill17.210.19 lb
Largemouth Bass6.450.73 lb
JND5.09
LES4.27
Black Crappie4.050.2 lb
BCS3.70

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

35 fish · 38 in · 2023-07-05
840345678

Largemouth Bass

1 fish · 55 in · 2023-07-05
105

Black Crappie

5 fish · 69 in · 2023-07-05
210trophy 106789

From the 2023-07-05 survey

A targeted survey of nearshore fish species in Leavitt Lake was conducted on July 5-6, 2023, by Index of Biological Integrity (IBI) Program staff. Sampling sites were evenly spaced around the lake, and each was sampled by backpack electrofishing and seining with a 50-foot seine. Nearshore sampling captured fourteen…

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 Leavitt 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: 2024-09-14

Monitoring stations: 1