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MN Fish Finder

Deep

Clearwater County
Near Clearbrook
DOW: 15009000
Rainbow TroutExcellent · 83Northern PikeGood · 64Black CrappieGood · 64

A 40-acre lake near Clearbrook in Clearwater County — best known for trout and pike. Last surveyed 2022.

Fish Species (11)

Rainbow Trout

Stocked 2024
Excellent · 83

Above-normal numbers · average-size fish

Gill-net survey · surveyed Jun 2022

Avg Size
11.6"
Avg Weight
0.77 lbs

Catch rate: 8.3 per gill net

Size of catchable rainbow trout13% keeper-size (16"+)
10–15" · 87%Largest sampled 20"
Stocked with yearlings every year · 37,974 fish total
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20228.2511.6"0.77 lbs
Jun 14, 20174.0010.9"0.56 lbs
Jun 13, 201210.5011.9"0.84 lbs
Stocking Details
YearSizeNumberPounds
2024yearlings2,100934.9
2023yearlings1,900549.1
2023adults74455.9
2022yearlings5,7002.0
2021yearlings4,7001.0
2020yearlings4,7001.0
2019yearlings4,7001.0
2018yearlings4,7001.0
2017yearlings4,7001.0
2016yearlings4,7001.0

Northern Pike

Good · 64

Below-normal numbers · large fish

Gill-net survey · surveyed Jun 2022

Avg Size
25.7"
Avg Weight
7.94 lbs

Catch rate: 0.5 per gill net · typical 2.8–8.7 for a lake like this

Size of catchable northern pike67% keeper-size (24"+)
14–23" · 33%Largest sampled 34"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20220.2525.7"0.62 lbs
Jun 14, 20220.5025.7"7.94 lbs
Jun 14, 20170.5619.8"0.79 lbs

Black Crappie

Good · 64

Typical numbers · large fish

Gill-net survey · surveyed Jun 2022

Avg Size
8.3"
Avg Weight
0.52 lbs

Catch rate: 1.0 per gill net · typical 0.5–2.9 for a lake like this

Size of catchable black crappie36% keeper-size (10"+)
5–9" · 64%Largest sampled 11"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20221.008.3"0.36 lbs
Jun 14, 20221.008.3"0.52 lbs
Jun 14, 20170.338.1"0.42 lbs

Hybrid Sunfish

Good · 57

Above-normal numbers · small fish

Trap-net survey · surveyed Jun 2022

Avg Size
6.2"
Avg Weight
0.25 lbs

Catch rate: 1.3 per trap net

Size of catchable hybrid sunfish10% keeper-size (8"+)
3–7" · 90%Largest sampled 8"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20221.256.2"0.25 lbs
Jun 14, 20172.335.9"0.21 lbs
Jun 14, 20170.255.9"0.15 lbs

Largemouth Bass

Average · 43

Average-size fish

Trap-net survey · surveyed Jun 2022

Avg Size
8.0"
Avg Weight
0.25 lbs

Catch rate: 0.25 per trap net · typical 0.3–1.6 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20220.258.0"0.25 lbs
Jun 14, 20220.258.0"0.43 lbs
Jun 14, 20170.788.8"0.53 lbs

Bluegill

Average · 39

Typical numbers · small fish

Trap-net survey · surveyed Jun 2022

Avg Size
6.2"
Avg Weight
0.24 lbs

Catch rate: 9.0 per trap net · typical 5.7–40.5 for a lake like this

Size of catchable bluegill10% keeper-size (8"+)
3–7" · 90%Largest sampled 9"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20229.006.2"0.24 lbs
Jun 14, 20222.506.2"0.30 lbs
Jun 14, 201734.336.8"0.14 lbs

Pumpkinseed

Average · 37

Below-normal numbers · average-size fish

Trap-net survey · surveyed Jun 2012

Last surveyed 2012 — treat with caution

Avg Size
5.3"
Avg Weight
0.17 lbs

Catch rate: 0.33 per trap net · typical 1.3–6.3 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 13, 20120.335.3"0.17 lbs
Aug 5, 19960.116.0"0.24 lbs

Green Sunfish

Average · 28

Below-normal numbers · average-size fish

Trap-net survey · surveyed Jun 2012

Last surveyed 2012 — treat with caution

Avg Size
5.0"
Avg Weight
0.13 lbs

Catch rate: 0.11 per trap net · typical 0.7–3.1 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 13, 20120.115.0"0.13 lbs

Yellow Perch

Poor · 4

Below-normal numbers · small fish

Gill-net survey · surveyed Jun 2022

Avg Size
6.3"
Avg Weight
0.13 lbs

Catch rate: 0.25 per gill net · typical 1.5–23 for a lake like this

Size of catchable yellow perch0% keeper-size (9"+)
5–8" · 100%Largest sampled 7"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20220.386.3"0.13 lbs
Jun 14, 20220.256.3"0.13 lbs
Jun 14, 20170.117.3"0.30 lbs
Other species in this lake (2)

Rough fish, bullheads, and baitfish recorded in DNR surveys — present in the lake, but not typical angling targets.

White Sucker

Good · 52

Below-normal numbers · large fish

Gill-net survey · surveyed Jun 2012

Last surveyed 2012 — treat with caution

Avg Size
23.0"
Avg Weight
6.76 lbs

Catch rate: 0.25 per gill net · typical 0.5–2.9 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 13, 20120.2523.0"6.76 lbs
Aug 5, 19960.1110.0"0.48 lbs

Yellow Bullhead

Average · 44

Typical numbers · small fish

Trap-net survey · surveyed Jun 2022

Avg Size
9.0"
Avg Weight
0.48 lbs

Catch rate: 2.6 per trap net · typical 1–8.4 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 14, 20220.259.0"0.68 lbs
Jun 14, 20222.629.0"0.48 lbs
Jun 14, 20176.008.7"0.22 lbs

Biologist Notes

June 14, 2022Deep Lake is a 40-acre lake located just east of the city of Clearbrook in Clearwater County. There is a County-owned public water access located on t…

Deep Lake is a 40-acre lake located just east of the city of Clearbrook in Clearwater County. There is a County-owned public water access located on the southeast end of the lake with parking for approximately 5 vehicles/trailers. Deep Lake is managed as a two-story fishery with Rainbow Trout, sunfish species, Black Crappie, Largemouth Bass and Northern Pike present in the lake. The diversity of species offers anglers a few options in case the trout don't feel like biting. Deep is not a designated stream trout lake, however anglers should be aware that a trout stamp is required if they want to harvest trout. Deep Lake has been stocked with 4,700 yearling Rainbow Trout annually since 2008. These fish are typically 9 to 11 inches in length at the time of stocking. The 2022 catch rate of 8/gill net was up from 4/gill net in the previous survey (2017). Reports of good trout fishing including catches of larger, carry-over fish are received by the area fisheries office each year. The largest Rainbow Trout captured in this survey measured over 20 inches in length. Deep Lake has become a popular winter destination for trout anglers in recent years. Thankfully, Northern Pike numbers have remained low in Deep Lake since the resumption of trout stocking in 2008 as they can be very effective predators of stocked trout. The largest pike captured in the 2022 survey was over 34 inches in length although larger fish have been caught by anglers or speared in recent years. Deep Lake has become a popular destination for Northern Pike spearing as well. The 2022 Bluegill catch rate of 9/trap net was down from 2017 (34/trap net). Twenty five percent of the bluegill catch exceeded 7 inches with a few fish approaching 9 inches in length captured. Black Crappie and Largemouth Bass are present in the lake but their catch rates have been very low in most surveys. Black Crappie up to 11 inches in length were captured in the 2022 survey.

June 14, 2017Deep Lake is a 40-acre lake located just east of the city of Clearbrook in Clearwater County. There is an unimproved public water access located on th…

Deep Lake is a 40-acre lake located just east of the city of Clearbrook in Clearwater County. There is an unimproved public water access located on the southeast end of the lake with parking for approximately 5 vehicles/trailers. Deep Lake is managed as a two-story fishery with Rainbow Trout, sunfish, Black Crappie, Largemouth Bass and Northern Pike present in the lake. This diversity of species offers anglers a few options in case the trout don't feel like biting. Deep Lake has been stocked with 4,700 yearling Rainbow Trout annually since 2008. These fish are typically 9 to 11 inches in length at the time of stocking. The 2017 catch rate of 4/gill net was down from 10.5/gill net in the most recent survey (2012). However, reports of good trout fishing including catches of larger carry-over fish are received by the area fisheries office each year. Deep Lake has also become a popular winter destination for trout anglers in recent years. The 2017 Bluegill catch rate of 34.33/trap net was up considerably from historic surveys and was within the upper range of values for similar lakes. Nearly 20% of Bluegill captured in trap nets exceeded 8 inches in length. Black Crappie and Largemouth Bass are present in the lake but their catch rates have been very low in most historic surveys. Black Crappie up to 10.63 inches in length and Largemouth Bass up to 14.29 inches in length were captured in the 2017 survey. Thankfully, Northern Pike numbers have remained low in Deep Lake since the resumption of trout stocking in 2008 as they can be very effective predators of stocked trout. The largest pike captured in the 2017 survey was 30.12 inches in length although larger fish have been caught by anglers or speared in recent years.

June 13, 2012Deep Lake is a 47-acre lake located just east of the city of Clearbrook in Clearwater County. There is an unimproved public water access located on th…

Deep Lake is a 47-acre lake located just east of the city of Clearbrook in Clearwater County. There is an unimproved public water access located on the southeast end of the lake. Deep Lake is managed as a two-story fishery with rainbow trout, sunfish, black crappie, largemouth bass and northern pike all present in the lake. Yearling rainbow trout have been stocked annually at a rate of 100 fish/acre since 2008. The 2012 rainbow trout catch rate of 10.50 fish/gill net shows an abundant trout population in Deep Lake. Rainbow trout ranged in length up to 18.1 inches, with an average size of 12.4 inches and 0.84 pounds. The length frequency distribution of the sample suggests the presence of 3 to 4 year classes of trout, indicating good survival and growth of stocked fish. Anglers have reported catching rainbow trout in excess of 20 inches in length during the past few years. Deep Lake is open to fishing during the winter season (see regulation synopsis for details). The success of rainbow trout management in Deep Lake has made it a popular destination for local anglers. Deep Lake contains a low-density northern pike population. The 2012 catch rate of 1.5 fish/gill net is well below the statewide lower quartile value of 2.8 fish/gill net for class 28 lakes. Pike ranged up to 36.3 inches in length, with an impressive average size of 28.4 inches and 7.5 pounds. Interestingly, the average size of pike in Deep Lake has nearly doubled since the last assessment in 2005, most likely due to the availability of rainbow trout as a prey species. Pike are voracious predators of trout, but their presence in such low numbers is not detrimental and provides anglers the opportunity to catch truly large pike. Bluegill, black crappie and largemouth bass are all present in Deep Lake. The lake's deep basin and sharp shoreline drop-offs limit suitable habitat for these warm-water species, resulting in low-density populations with relatively slow growth rates. The 2012 assessment catch rate for bluegill was 16.0 fish/trap net, which is within the normal range for class 28 lakes. Bluegill reproduction has been consistent, with 6 year classes identified from the sample. Medium size bluegill from 6 to 8 inches in length comprised a large proportion of the sample (55%). Growth rates for bluegill were actually above average for this lake type in the Bemidji area, so these fish have some potential to reach larger sizes, and fish up to 9.4 inches in length were present in the 2012 sample. Black crappie were captured in very low numbers compared to previous assessments and may not warrant any angling effort at this time. The largemouth bass catch rate of 1.33 fish/trap net was within the normal range for class 28 lakes. Largemouth bass ranged in length up to 13.9 inches. Growth rates for largemouth bass were below the Bemidji area mean for this lake class, which may limit the ultimate size bass are able to obtain in the lake. Other warm-water fish species sampled in small numbers in 2012 included hybrid sunfish, pumpkinseed sunfish, yellow bullhead and yellow perch.

Frequently Asked Questions

What fish can you catch in Deep?

Based on Minnesota DNR survey data, anglers target Rainbow Trout, Northern Pike, Black Crappie, Hybrid Sunfish, and Largemouth Bass in Deep. See the full species list above for catch rates, size structure, and quality scores.

Is there public access at Deep?

Minnesota DNR records list public access for Deep. Check the DNR LakeFinder page for the launch type and directions before you go.

How deep is Deep?

Deep has a maximum depth of 76 feet, per Minnesota DNR data.

When were the main sport fish in Deep last surveyed?

The most recent Minnesota DNR survey data for the main sport fish in Deep is from 2022.

Does Deep have any invasive species?

No invasive species are on record for Deep in Minnesota DNR data. Always clean, drain, and dry your equipment to help keep it that way.

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Lake Details

Surface Area
40.24 acres
Max Depth
76 ft
Shoreline
1.85 mi
Public Access
Yes
View on DNR LakeFinder

Location

47.6830°N, 95.3982°W

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