Minnesota · DNR survey data

Shamrock Lake

Shamrock Lake covers 50 acres in Itasca County, running to 55 feet, last surveyed by the DNR in 2020. The Minnesota DNR has not published bathymetry for this lake, so there is no depth map here, just the survey record: what the nets held and how big it ran.

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DNR survey data

Fish species

Species
How many
Survey numbers
Lengths
Walleye
No recent survey rating

No recent survey rating.

Largemouth bass
Fair numbers
42per hr (electrofishing)
11"Typical
18"Biggest
5"18"

Lengths measured · 19 fish

Recent · 2011 + 2020
5"10"15"18"

Lengths measured · 2 fish

2020
5"10"15"18"

Only 2 fish measured that year — too few to read as a shape.

Lengths measured · 17 fish

2011
5"10"15"18"
Northern pike
Just a few
5.8per gill net
23"Typical
33"Biggest
13"33"

Lengths measured · 36 fish

Recent · 2011 + 2020
13"15"20"25"30"33"

Lengths measured · 20 fish

2020
13"15"20"25"30"33"

Lengths measured · 16 fish

2011
13"15"20"25"30"33"

Lengths measured · 1 fish

2000
13"15"20"25"30"33"

Only 1 fish measured that year — too few to read as a shape.

Bluegill
Just a few
3.7per trap net
5"Typical
7"Biggest
3"7"

Lengths measured · 30 fish

Recent · 2011 + 2020
3"4"6"7"

Lengths measured · 6 fish

2020
3"4"6"7"

Only 6 fish measured that year — too few to read as a shape.

Lengths measured · 24 fish

2011
3"4"6"7"
Crappie
Just a few
1.2per trap net
7"Typical
9"Biggest
6"9"

Lengths measured · 11 fish

Recent · 2011 + 2020
6"8"9"

Lengths measured · 3 fish

2020
6"8"9"

Only 3 fish measured that year — too few to read as a shape.

Lengths measured · 8 fish

2011
6"8"9"

Only 8 fish measured that year — too few to read as a shape.

Yellow perch
No recent survey rating

No recent survey rating.

Rock bass
Just a few
0.3per trap net
Typical
7"Biggest

Rates come from standard DNR survey gear (gill nets, trap nets, electrofishing), judged against statewide benchmarks for the same gear — which is why the same number of fish per net can read differently for two species. Where the standard gear can't count a species reliably, the page shows presence and size only. Typical is the middle fish of those measured. Open a row for the full length spread, survey by survey. You can read every number on this page without an app or an account.

Recent reports

Shamrock Lake fishing reports

Recent reports on Shamrock Lake from guides, tournaments and regular anglers. Anything posted in the last two weeks also bumps the matching spots on the live map, so you'll see a "matches a recent report" tag on them.

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Itasca County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Shamrock Lake?

The Minnesota DNR has not published bathymetry for Shamrock Lake, so this page carries the survey record instead: species, catch rates and stocking history.

What fish are in Shamrock Lake?

The most recent DNR survey (2020) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.

Is Shamrock Lake stocked?

No stocking is on record for Shamrock Lake in the DNR's stocking database.

When was Shamrock Lake last surveyed?

The Minnesota DNR last surveyed Shamrock Lake in 2020, the most recent of 8 surveys on record. A survey that old is a starting point, not a current reading.

Survey numbers are the Minnesota DNR's. How this site reads them →

Page updated .