Minnesota · DNR survey data

Big McCarthy Lake

Big McCarthy Lake covers 105 acres in Itasca County, running to 45 feet, last surveyed by the DNR in 2008. 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
Largemouth bass
Present
0.1per trap net
Typical
13"Biggest
Northern pike
Just a few
4.5per gill net
19"Typical
30"Biggest
16"30"

Lengths measured · 28 fish

16"20"25"30"
Bluegill
Just a few
15.9per trap net
5"Typical
7"Biggest
3"7"

Lengths measured · 145 fish

3"4"6"7"
Crappie
Just a few
2per trap net
6"Typical
10"Biggest
5"10"

Lengths measured · 18 fish

5"6"8"10"
Yellow perch
Just a few
0.2per gill net
Typical
6"Biggest
Rock bass
Fair numbers
0.6per trap net
Typical
9"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

Big McCarthy Lake fishing reports

Recent reports on Big McCarthy 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

Public water access

Getting on the water

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Big McCarthy Lake?

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

What fish are in Big McCarthy Lake?

The most recent DNR survey (2008) recorded largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.

Does Big McCarthy Lake have a public access?

Yes. Big McCarthy Lake has one public access site: Big McCarthy Lake (trailer launch).

Is Big McCarthy Lake stocked?

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

When was Big McCarthy Lake last surveyed?

The Minnesota DNR last surveyed Big McCarthy Lake in 2008, the most recent of 4 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 .