Minnesota · DNR survey data

Gabbro Lake

Gabbro Lake covers 977 acres in Lake County, running to 50 feet, last surveyed by the DNR in 2025. 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
Excellent numbers
7.3per gill net
11"Typical
19"Biggest
7"19"

Lengths measured · 58 fish

7"10"15"19"
Smallmouth bass
Present (last recorded 2016)
0.1per gill net
Typical
16"Biggest
Northern pike
Just a few
0.5per gill net
Typical
35"Biggest
Bluegill
No recent survey rating

No recent survey rating.

Crappie
Present (last recorded 2016)
0.9per gill net
Typical
10"Biggest
Yellow perch
Good numbers
4.8per gill net
8"Typical
10"Biggest
5"10"

Lengths measured · 38 fish

5"6"8"10"
Rock bass
Good numbers
1.6per gill net
7"Typical
9"Biggest
5"9"

Lengths measured · 13 fish

5"6"8"9"

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

Gabbro Lake fishing reports

Recent reports on Gabbro 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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Lake County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Gabbro Lake?

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

What fish are in Gabbro Lake?

The most recent DNR survey (2025) recorded walleye, smallmouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.

Is Gabbro Lake stocked?

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

When was Gabbro Lake last surveyed?

The Minnesota DNR last surveyed Gabbro Lake in 2025, the most recent of 5 surveys on record.

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

Page updated .