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B

Raddison Lake

Itasca County, MinnesotaLimited DataOligotrophic

Raddison Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth.

Trophically, Raddison Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 40 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 204 acres, Raddison Lake fits the Minnesota median for monitored lakes, with 3.8 miles of shoreline. Within Itasca County's 141 graded lakes, Raddison Lake ranks 88 — below the local median, though not at the bottom.

Raddison Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Bass fishing is part of the appeal: the species list runs to 8, anchored by largemouth and/or smallmouth bass. A documented public access point at Raddison Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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 2024-09-27. Grade methodology: LakeGrade methodology.

Reviewed by LakeQuality Editorial Team · Updated

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Good clarity, visible to about 14 ft. Trophic State Index: 39.

MetricValueGrade
Water Clarity (Secchi Depth)14 ftB
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)39Oligotrophic

Low nutrients, clear water, excellent for swimming

Lake Details

CharacteristicValue
Maximum Depth40 ft
Surface Area203.56 acres
Shoreline Length3.8 mi
Littoral Zone36%
Public AccessYes

Fish Species

black crappie,bluegill,largemouth bass,northern pike,pumpkinseed,smallmouth bass,white sucker,yellow perch

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

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

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

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

Location

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County Ranking

Ranked #88 of 141 lakes in Itasca County

Cleaner Lakes Within 30 Miles

Raddison Lake holds Grade B. 3 nearby lakes hold higher grades.

Nearby Lakes in Itasca County

DNR Fisheries Survey Summary

4 surveys on file from MN DNR Fisheries. Most recent: 2002-06-17 (Standard Survey).

Top Species by Catch Rate

SpeciesAvg CPUEAvg Weight
Bluegill20.130.17 lb
Northern Pike4.962.74 lb
Yellow Perch4.280.11 lb
Pumpkinseed3.980.18 lb
Black Crappie3.110.39 lb
Largemouth Bass1.310.48 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

324 fish · 39 in · 2002-06-17
98490trophy 103456789

Northern Pike

101 fish · 940 in · 2002-06-17
1580trophy 3610121416182022242628303234363840

Yellow Perch

4 fish · 56 in · 2002-06-17
21056

Pumpkinseed

24 fish · 38 in · 2002-06-17
630345678

From the 2002-06-17 survey

Radisson Lake is a 197-acre lake in Itasca County within the Big Fork River watershed. Radisson Lake is approximately 10 miles east of Bigfork, MN. The lake has a maximum depth of 40 ft and 73 acres less than 15 ft deep. A public access is located on the south shore. Water clarity was good with a Secchi disk reading…

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 Raddison Lake. 3 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: 2024-09-27

Monitoring stations: 1