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LakeQuality
B

Hoot Lake

Otter Tail County, MinnesotaLimited DataMesotrophic

Hoot Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI near 42 places Hoot Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Hoot Lake reaches 20 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 161 acres and 2.9 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Within Otter Tail County's 97 graded lakes, Hoot Lake ranks 64 — below the local median, though not at the bottom.

Hoot Lake is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The fishery includes walleye alongside the lake's other 16 documented species — a notable draw for Minnesota anglers. A documented public access point at Hoot 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 2024-08-26. 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 11.7 ft. Trophic State Index: 42.

MetricValueGrade
Water Clarity (Secchi Depth)11.7 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)42Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Maximum Depth20 ft
Surface Area161.33 acres
Shoreline Length2.9 mi
Littoral Zone39%
Public AccessYes

Fish Species

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

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

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

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

Invasive Species

zebra mussel

Water Quality Trend: Improving

Based on 3 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+0.19 m/yr3

Location

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County Ranking

Ranked #64 of 97 lakes in Otter Tail County

Nearby Lakes in Otter Tail County

DNR Fisheries Survey Summary

6 surveys on file from MN DNR Fisheries. Most recent: 2025-07-07 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Smallmouth Bass39.822.15 lb
Yellow Perch27.540.08 lb
Bluegill22.200.15 lb
Largemouth Bass14.581.13 lb
Northern Pike3.092.44 lb
Pumpkinseed2.550.15 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.

Smallmouth Bass

34 fish · 620 in · 2025-07-07
950trophy 1868101214161820

Yellow Perch

118 fish · 57 in · 2025-07-07
63320567

Bluegill

546 fish · 38 in · 2025-07-07
2111060345678

Largemouth Bass

40 fish · 319 in · 2025-07-07
630trophy 204681012141618

From the 2025-07-07 survey

Hoot Lake is a 155-acre mesotrophic (moderately fertile) lake located in southwest Otter Tail County. Hoot Lake is located within the city limits of Fergus Falls, MN. Hoot Lake is part of the Otter Tail River chain of lakes. The Otter Tail River enters the lake along the northeast shoreline and outlets to Wright Lake…

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 Hoot 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

Most recent sample: 2024-08-26

Monitoring stations: 1