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.
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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.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 40 ft |
| Surface Area | 203.56 acres |
| Shoreline Length | 3.8 mi |
| Littoral Zone | 36% |
| Public Access | Yes |
Fish Species
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
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
More Minnesota Lake Rankings
State Parks Near Raddison Lake
Other Grade B Lakes in Minnesota
Oligotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
4 surveys on file from MN DNR Fisheries. Most recent: 2002-06-17 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 20.13 | 0.17 lb |
| Northern Pike | 4.96 | 2.74 lb |
| Yellow Perch | 4.28 | 0.11 lb |
| Pumpkinseed | 3.98 | 0.18 lb |
| Black Crappie | 3.11 | 0.39 lb |
| Largemouth Bass | 1.31 | 0.48 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
Northern Pike
Yellow Perch
Pumpkinseed
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…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Raddison Lake. 3 reports on file.
- —Fisheries Lake Survey — RaddisonFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Raddison (0750)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — RaddisonPublic 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
Most recent sample: 2024-09-27
Monitoring stations: 1