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FishGrade

Lost

Washington County
Near Mahtomedi
DOW: 82013400
Hybrid SunfishExcellent · 79Largemouth BassGood · 50White CrappieGood · 50

A 22-acre lake near Mahtomedi in Washington County — best known for panfish and bass. Last surveyed 2017.

Fish Species (15)

Excellent · 79

Above-normal numbers

Trap-net survey · surveyed May 2017

Last surveyed 2017 — treat with caution

Avg Size
6.5"
Avg Weight
0.31 lbs

Catch rate: 1.3 per trap net

Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20171.336.5"0.31 lbs
May 29, 20122.805.9"0.25 lbs
May 24, 20055.405.7"0.21 lbs
Good · 50

Large fish

Trap-net survey · surveyed May 2012

Last surveyed 2012 — treat with caution

Avg Size
12.3"
Avg Weight
1.10 lbs

Catch rate: 0.6 per trap net · typical 0.3–1.3 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20120.6012.3"1.10 lbs
Good · 50

Above-normal numbers · small fish

Trap-net survey · surveyed Jun 1993

Last surveyed 1993 — treat with caution

Avg Size
7.0"
Avg Weight
0.20 lbs

Catch rate: 4.2 per trap net · typical 0.2–0.5 for a lake like this

Size of catchable white crappie0% keeper-size (10"+)
5–9" · 100%Largest sampled 8"
Survey History
DateCatch RateAvg LengthAvg Weight
Jun 17, 19934.207.0"0.20 lbs

Yellow Perch

Stocked 2025
Average · 47

Below-normal numbers · large fish

Gill-net survey · surveyed May 2012

Last surveyed 2012 — treat with caution

Avg Size
8.0"
Avg Weight
0.25 lbs

Catch rate: 1.0 per gill net · typical 2.5–24.8 for a lake like this

Stocked with adults once · 5,835 fish total
Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20121.008.0"0.25 lbs
Stocking Details
YearSizeNumberPounds
2025adults5,835389.0
Average · 34

Typical numbers · small fish

Trap-net survey · surveyed May 2017

Last surveyed 2017 — treat with caution

Avg Size
3.5"
Avg Weight
0.05 lbs

Catch rate: 0.67 per trap net · typical 0.2–2.1 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20170.673.5"0.05 lbs
May 29, 20121.005.0"0.14 lbs
May 24, 20051.405.6"0.18 lbs

Black Crappie

Stocked 2024
Average · 29

Typical numbers · small fish

Trap-net survey · surveyed May 2005

Last surveyed 2005 — treat with caution

Avg Size
4.9"
Avg Weight
0.13 lbs

Catch rate: 3.0 per trap net · typical 1.2–4.8 for a lake like this

Size of catchable black crappie0% keeper-size (10"+)
5–9" · 100%Largest sampled 9"
Stocked with adults once · 484 fish total
Survey History
DateCatch RateAvg LengthAvg Weight
May 24, 20053.004.9"0.13 lbs
Jun 17, 19933.406.2"0.17 lbs
Stocking Details
YearSizeNumberPounds
2024adults48470.2
Average · 28

Typical numbers · small fish

Trap-net survey · surveyed May 2017

Last surveyed 2017 — treat with caution

Avg Size
4.0"
Avg Weight
0.07 lbs

Catch rate: 12.3 per trap net · typical 4.9–49.8 for a lake like this

Size of catchable bluegill3% keeper-size (8"+)
3–7" · 97%Largest sampled 8"
Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 201712.334.0"0.07 lbs
May 29, 20122.005.8"0.08 lbs
May 29, 20126.205.8"0.23 lbs
Average · 25

Small fish

Trap-net survey · surveyed May 2012

Last surveyed 2012 — treat with caution

Avg Size
12.0"
Avg Weight
0.69 lbs

Catch rate: 0.2 per trap net · typical 0.3–1 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20120.2012.0"0.69 lbs

Pumpkinseed

Stocked 2023
Poor · 22

Typical numbers · small fish

Trap-net survey · surveyed May 2017

Last surveyed 2017 — treat with caution

Avg Size
5.0"
Avg Weight
0.13 lbs

Catch rate: 2.7 per trap net · typical 1.7–10.3 for a lake like this

Size of catchable pumpkinseed0% keeper-size (8"+)
3–7" · 100%Largest sampled 6"
Stocked with adults once · 1,080 fish total
Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20172.675.0"0.13 lbs
May 29, 20124.804.3"0.09 lbs
May 29, 20121.004.3"0.14 lbs
Stocking Details
YearSizeNumberPounds
2023adults1,08060.0
Poor · 22

Typical numbers · small fish

Gill-net survey · surveyed May 2017

Last surveyed 2017 — treat with caution

Avg Size
17.4"
Avg Weight
1.37 lbs

Catch rate: 9.0 per gill net · typical 4.5–11.3 for a lake like this

Size of catchable northern pike0% keeper-size (24"+)
14–23" · 100%Largest sampled 22"
Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20171.6717.4"1.11 lbs
May 29, 20179.0017.4"1.37 lbs
May 29, 201219.0014.9"1.16 lbs
Other species in this lake (5)

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

Average · 48

Above-normal numbers · small fish

Gill-net survey · surveyed May 2005

Last surveyed 2005 — treat with caution

Avg Size
8.8"
Avg Weight
0.48 lbs

Catch rate: 1.5 per gill net · typical 1 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 24, 20051.508.8"0.48 lbs
May 24, 20051.208.8"0.44 lbs
Average · 44

Typical numbers · average-size fish

Trap-net survey · surveyed May 2012

Last surveyed 2012 — treat with caution

Avg Size
5.9"
Avg Weight
0.18 lbs

Catch rate: 2.4 per trap net · typical 1.1–25.2 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 29, 20177.005.9"0.13 lbs
May 29, 201225.005.9"0.13 lbs
May 29, 20122.405.9"0.18 lbs
Average · 28

Small fish

Trap-net survey · surveyed May 2005

Last surveyed 2005 — treat with caution

Avg Size
4.8"
Avg Weight
0.07 lbs

Catch rate: 1.0 per trap net · typical 0.5–1.5 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 24, 20051.004.8"0.07 lbs
Jun 17, 19930.204.0"0.04 lbs
Average · 25

Below-normal numbers · small fish

Gill-net survey · surveyed May 2005

Last surveyed 2005 — treat with caution

Avg Size
12.0"
Avg Weight
0.96 lbs

Catch rate: 0.5 per gill net · typical 1–3.4 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
May 24, 20050.5012.0"0.96 lbs
Poor · 10

Below-normal numbers · small fish

Trap-net survey · surveyed Jun 1998

Last surveyed 1998 — treat with caution

Avg Size
6.0"
Avg Weight
0.15 lbs

Catch rate: 0.2 per trap net · typical 2.2–16.4 for a lake like this

Survey History
DateCatch RateAvg LengthAvg Weight
Jun 2, 19980.206.0"0.15 lbs

See the best hybrid sunfish lakes in Minnesota

Fishing Regulations

Statewide limits

Standard statewide Minnesota limits for the species in this lake.

Walleye and Sauger

Season: May 9, 2026 – Feb 28, 2027

6 combined, not more than one walleye over 20"

Northern Pike

Season: May 9, 2026 – Feb 28, 2027

North-central zone

Angling: 10 (not more than 2 over 26". All from 22-26" must be immediatley released).

Largemouth Bass

Season: Mar 1, 2026 – May 22, 2026

Largemouth bass in the Southern and North-central zones

Catch-and-release only

Largemouth Bass

Season: May 23, 2026 – Feb 28, 2027

Largemouth bass in the Southern and North-central zones

6 combined total largemouth or smallmouth (when smallmouth season is open)

Crappie

10 combined total

Sunfish

20 combined total

Perch

20 daily and 40 in possession

More statewide rules (spearing, rough fish)

Northern Pike

Season: Nov 15, 2026 – Feb 28, 2027

North-central zone

Darkhouse spearing: 10 (only 1 between 22-26" and 1 over 26"; or, only 2 over 26").

Bowfin, buffalo, carp, carpsuckers, freshwater drum, goldeneye, redhorse, and suckers

no limit

Bullhead

100

Biologist Notes

May 29, 2017Lost Lake is located in Wildwood Park within the city of Mahtomedi, south of County Road 244 and Old Wildwood Road. Lost lake (lake class 36) has nine…

Lost Lake is located in Wildwood Park within the city of Mahtomedi, south of County Road 244 and Old Wildwood Road. Lost lake (lake class 36) has nine surface acres and a maximum depth 26 feet. In 1987 Lost first came under DNR Fisheries management as kids fishing pond. The Fishing in The Neighborhood program (FiN) currently manages the fishery. A connection to White Bear Lake exists during normal water levels and can provide a mode for immigration and emigration to and from Lost Lake. Approximately 25% of the total lake shore is within the park and a fishing pier provides access to the lake for anglers. Lost provides opportunities for shorefishing to anglers that don't own a boat or have access to shoreline on White Bear Lake. The lake supports a very diverse population of native aquatic plants and all efforts should be made to protect this diversity from invasive species such as Eurasian watermilfoil. The lake experiences winterkill conditions occasionally, which can affect angling success in successive years. Aquatic vegetation can be dense and become problematic at times around the fishing pier. Bluegills were the most abundant species observed in the 2017 survey but they are still below average in abundance for lakes similar to Lost Lake. The average size is less than 5 inches and is considerably less than past surveys where average size was over 6 inches. Pumpkinseed and Hybrid Sunfish were also found in below average numbers for lakes like Lost. Hybrid Sunfish had an average size of 7.0 inches and Pumpkinseed a 5.3 inch average. Northern Pike had an average size of 16.5 inches and can be found in slightly above average abundance. The Northern Pike population has decreased considerably since the last survey when they could be found in very high abundance. Black Bullheads were found in below average abundance for lakes similar to Lost Lake. Other fish sampled in low number were two Green Sunfish.

May 29, 2012Lost Lake is located in Wildwood Park within the city of Mahtomedi. Approximately 25% of the total lake shore is within the park and a fishing pier pr…

Lost Lake is located in Wildwood Park within the city of Mahtomedi. Approximately 25% of the total lake shore is within the park and a fishing pier provides access to the lake for anglers. Lost Lake (Lake class 36) is nine acres and has a maximum depth of 26 feet. In 1987 Lost first came under DNR Fisheries management as a kids fishing pond. The Fishing in The Neighborhood program (FiN) currently manages the fishery. Previous population assessments have been conducted in 1993, 1998 and 2005. A connection to White Bear Lake exists during normal water levels and can provide a mode for immigration and emigration to and from Lost Lake. Bluegills were abundant in the 2012 survey, though their numbers have decreased since the last survey in 2005. The average size (6-7 inch) has remained similar to past surveys. For Lost Lake, annual stocking of bluegill has the most influence on their relative abundance. Pumpkinseed and hybrid sunfish were also found in Lost Lake in moderate abundance with hybrid sunfish having an average size of over 6.5 inches. Northern pike had an average size of 15.2 inches but are found in high number. The abundance of northern pike has increased considerably since the last survey. Largemouth bass can be found in moderate numbers as well but are very slow growing in Lost Lake when compared to statewide averages. Black bullheads were found in average abundance for lakes similar to Lost Lake. Other fish sampled in low number include yellow perch, green sunfish and bowfin. One walleye was sampled during this survey and it most likely moved into Lost Lake from White Bear Lake.

May 24, 2005Lost Lake is located in Wildwood Park, City of Mahtomedi. There is a fishing pier and shorefishing opportunities available from the parkland. The lake…

Lost Lake is located in Wildwood Park, City of Mahtomedi. There is a fishing pier and shorefishing opportunities available from the parkland. The lake has been managed as a Kids Fishing Pond since 1987 and is currently managed by the Fishing In the Neighborhood Program. Panfish stocking occurs on an annual basis and additionally fish can migrate into the lake from White Bear Lake.Bluegill were the most abundant fish species sampled in the 2005 survey. Their numbers have increased over time presumably due to the annual stockings. The majority of the fish sampled were between 6 and 7 inches long. Black crappie were present but in low numbers and were small (5.5 inch average size). Northern pike had an average size of 19.8 inches and were present in moderate numbers. Other fish sampled included black bullhead, bowfin (dogfish), green sunfish, hybrid sunfish, pumpkinseed, white sucker and common carp. Largemouth bass were not sampled but were stocked and have been caught by anglers.

Frequently Asked Questions

What fish can you catch in Lost?

Based on Minnesota DNR survey data, anglers target Hybrid Sunfish, Largemouth Bass, White Crappie, Yellow Perch, and Green Sunfish in Lost. See the full species list above for catch rates, size structure, and quality scores.

Is there public access at Lost?

We don't have a confirmed public access point on record for Lost. Check the DNR LakeFinder page for current access details before you go.

How deep is Lost?

Lost has a maximum depth of 26 feet and a mean depth of 8.5 feet, per Minnesota DNR data.

When were the main sport fish in Lost last surveyed?

The most recent Minnesota DNR survey data for the main sport fish in Lost is from 2017. Surveys this old should be treated with some caution — fish populations change over time.

Does Lost have any invasive species?

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

Are there special fishing regulations on Lost?

No — Lost has no lake-specific regulations in the 2026 Minnesota DNR regulations, so statewide Minnesota limits apply. The statewide sunfish limit is: 20 combined total. Verify current rules with the Minnesota DNR before keeping fish.

More lakes in Washington County

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Lake Details

Surface Area
21.68 acres
Max Depth
26 ft
Mean Depth
8.5 ft
Shoreline
1.39 mi
Public Access
Not confirmed
View on DNR LakeFinderDNR depth map (PDF)

Location

45.0521°N, 92.9687°W

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