Four

Aitkin County, Minnesota — DOW #01011600

91 Surveys
137.25
Acres
31 ft
Max Depth
8 ft
Mean Depth
10
Fish Species
3
Local Guides

DNR Fish Surveys

Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Four. Green = above normal range. Red = below normal.

Brown Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard trap nets 0.1 (below normal) 0.5 – 10.0 0.62 lb 1
2009-06-29 Standard gill nets 2.3 (normal) 1.0 – 21.6 0.84 lb 7
1983-07-11 Standard gill nets 5.0 (normal) 1.0 – 21.6 0.42 lb 10
1983-07-11 Standard trap nets 0.4 (below normal) 0.5 – 10.0 0.78 lb 5
1991-07-09 Standard gill nets 2.7 (normal) 1.0 – 21.6 0.54 lb 8
1991-07-09 Standard trap nets 0.4 (below normal) 0.5 – 10.0 0.60 lb 3
1999-06-28 Standard gill nets 1.2 (normal) 1.0 – 21.6 0.83 lb 6
1996-07-22 Standard trap nets 0.6 (normal) 0.5 – 10.0 0.54 lb 5
1996-07-22 Standard gill nets 8.2 (normal) 1.0 – 21.6 0.61 lb 41

Yellow Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 17.3 (above normal) 1.0 – 13.8 0.35 lb 52
2009-06-29 Standard trap nets 8.8 (normal) 1.8 – 9.7 0.48 lb 79
1983-07-11 Standard gill nets 24.5 (above normal) 1.0 – 13.8 0.18 lb 49
1983-07-11 Standard trap nets 11.7 (above normal) 1.8 – 9.7 0.30 lb 140
1991-07-09 Standard gill nets 24.0 (above normal) 1.0 – 13.8 0.24 lb 72
1991-07-09 Standard trap nets 19.4 (above normal) 1.8 – 9.7 0.30 lb 155
1999-06-28 Standard gill nets 4.4 (normal) 1.0 – 13.8 0.19 lb 22
1999-06-28 Standard trap nets 1.1 (below normal) 1.8 – 9.7 0.56 lb 9
1996-07-22 Standard gill nets 6.6 (normal) 1.0 – 13.8 0.18 lb 33
1996-07-22 Standard trap nets 8.5 (normal) 1.8 – 9.7 0.37 lb 68

Northern Pike

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 14.0 (above normal) 2.5 – 7.8 1.96 lb 42
2009-06-29 Standard trap nets 0.8 2.95 lb 7
1983-07-11 Standard gill nets 9.5 (above normal) 2.5 – 7.8 2.72 lb 19
1983-07-11 Standard trap nets 0.4 1.60 lb 5
1991-07-09 Standard gill nets 13.7 (above normal) 2.5 – 7.8 1.79 lb 41
1991-07-09 Standard trap nets 1.9 1.23 lb 15
1999-06-28 Standard gill nets 10.8 (above normal) 2.5 – 7.8 2.09 lb 54
1999-06-28 Standard trap nets 0.3 1.27 lb 2
1996-07-22 Standard gill nets 12.4 (above normal) 2.5 – 7.8 2.10 lb 62
1996-07-22 Standard trap nets 1.0 1.91 lb 8

Hybrid Sunfish

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 1.3 0.11 lb 4
2009-06-29 Standard trap nets 5.3 0.30 lb 48
1991-07-09 Standard trap nets 2.9 0.27 lb 23
1999-06-28 Standard gill nets 1.0 0.21 lb 5
1999-06-28 Standard trap nets 3.8 0.19 lb 30
1996-07-22 Standard gill nets 0.8 0.09 lb 4
1996-07-22 Standard trap nets 0.1 0.37 lb 1

Largemouth Bass

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 4.7 (above normal) 0.5 – 2.1 1.78 lb 14
2009-06-29 Standard trap nets 1.1 (normal) 0.5 – 1.4 2.17 lb 10
1983-07-11 Standard trap nets 0.6 (normal) 0.5 – 1.4 0.82 lb 7
1983-07-11 Standard gill nets 3.5 (above normal) 0.5 – 2.1 0.86 lb 7
1991-07-09 Standard trap nets 1.1 (normal) 0.5 – 1.4 0.48 lb 9
1991-07-09 Standard gill nets 1.3 (normal) 0.5 – 2.1 1.27 lb 4
1999-06-28 Standard gill nets 2.6 (above normal) 0.5 – 2.1 1.20 lb 13
1999-06-28 Standard trap nets 0.6 (normal) 0.5 – 1.4 0.46 lb 5
1996-07-22 Standard gill nets 2.6 (above normal) 0.5 – 2.1 2.28 lb 13
1996-07-22 Standard trap nets 0.5 (normal) 0.5 – 1.4 1.38 lb 4

Bluegill

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 11.7 0.08 lb 35
2009-06-29 Standard trap nets 22.2 (normal) 4.3 – 32.8 0.08 lb 200
1983-07-11 Standard trap nets 58.1 (above normal) 4.3 – 32.8 0.11 lb 697
1983-07-11 Standard gill nets 19.5 0.10 lb 39
1991-07-09 Standard trap nets 43.6 (above normal) 4.3 – 32.8 0.07 lb 349
1991-07-09 Standard gill nets 10.3 0.10 lb 31
1999-06-28 Standard gill nets 17.0 0.08 lb 85
1999-06-28 Standard trap nets 18.5 (normal) 4.3 – 32.8 0.09 lb 148
1996-07-22 Standard gill nets 19.4 0.06 lb 97
1996-07-22 Standard trap nets 23.3 (normal) 4.3 – 32.8 0.07 lb 186

Pumpkinseed

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 1.0 3
2009-06-29 Standard trap nets 0.2 (below normal) 1.3 – 9.8 0.08 lb 2
1983-07-11 Standard gill nets 2.5 0.05 lb 5
1983-07-11 Standard trap nets 15.7 (above normal) 1.3 – 9.8 0.16 lb 188
1991-07-09 Standard gill nets 0.3 0.30 lb 1
1991-07-09 Standard trap nets 11.5 (above normal) 1.3 – 9.8 0.20 lb 92
1999-06-28 Standard gill nets 0.2 0.11 lb 1
1999-06-28 Standard trap nets 0.1 (below normal) 1.3 – 9.8 0.12 lb 1
1996-07-22 Standard gill nets 1.2 0.07 lb 6
1996-07-22 Standard trap nets 3.6 (normal) 1.3 – 9.8 0.19 lb 29

Black Crappie

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 4.0 (normal) 1.0 – 9.1 0.28 lb 12
2009-06-29 Standard trap nets 1.1 (normal) 1.1 – 10.6 0.40 lb 10
1983-07-11 Standard gill nets 7.0 (normal) 1.0 – 9.1 0.25 lb 14
1983-07-11 Standard trap nets 2.5 (normal) 1.1 – 10.6 0.35 lb 30
1991-07-09 Standard gill nets 2.3 (normal) 1.0 – 9.1 0.27 lb 7
1991-07-09 Standard trap nets 1.6 (normal) 1.1 – 10.6 0.38 lb 13
1999-06-28 Standard gill nets 4.8 (normal) 1.0 – 9.1 0.22 lb 24
1999-06-28 Standard trap nets 1.4 (normal) 1.1 – 10.6 0.31 lb 11
1996-07-22 Standard gill nets 3.6 (normal) 1.0 – 9.1 0.12 lb 18
1996-07-22 Standard trap nets 0.6 (below normal) 1.1 – 10.6 0.30 lb 5

Yellow Perch

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard gill nets 0.3 (below normal) 1.5 – 20.5 0.07 lb 1
1999-06-28 Standard gill nets 0.4 (below normal) 1.5 – 20.5 0.08 lb 2
1996-07-22 Standard trap nets 0.1 (below normal) 0.5 – 3.3 0.14 lb 1
1996-07-22 Standard gill nets 0.6 (below normal) 1.5 – 20.5 0.09 lb 3

Bowfin

Date Gear CPUE Normal Range Avg Weight Total Catch
2009-06-29 Standard trap nets 0.2 (below normal) 0.4 – 1.3 4.30 lb 2
1983-07-11 Standard trap nets 0.9 (normal) 0.4 – 1.3 4.20 lb 11
1991-07-09 Standard trap nets 0.6 (normal) 0.4 – 1.3 5.42 lb 5
1999-06-28 Standard trap nets 0.1 (below normal) 0.4 – 1.3 3.67 lb 1
1996-07-22 Standard trap nets 0.3 (below normal) 0.4 – 1.3 5.05 lb 2

Black Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
1991-07-09 Standard gill nets 1.0 (normal) 0.5 – 37.0 0.60 lb 3
1996-07-22 Standard gill nets 1.6 (normal) 0.5 – 37.0 0.68 lb 8

Walleye

Date Gear CPUE Normal Range Avg Weight Total Catch
1999-06-28 Standard gill nets 0.2 (below normal) 0.5 – 1.5 1.94 lb 1
1999-06-28 Standard trap nets 0.1 (below normal) 0.3 – 0.8 1.18 lb 1
1996-07-22 Standard gill nets 0.2 (below normal) 0.5 – 1.5 1.08 lb 1
1996-07-22 Standard trap nets 0.1 (below normal) 0.3 – 0.8 1.12 lb 1

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Fish Species

Species known to inhabit Four. Click any species for a full fishing guide.

Black CrappieBluegillBowfin (Dogfish)Brown BullheadHybrid SunfishLargemouth BassNorthern PikePumpkinseedYellow BullheadYellow Perch

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Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026. Learn how we maintain this data.