Minnesota · DNR survey data

Rat Root Lake

Rat Root Lake covers 734 acres in Koochiching County, running to 8 feet, last surveyed by the DNR in 2019. 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
Just a few
0.9per gill net
21"Typical
24"Biggest
12"24"

Lengths measured · 21 fish

Recent · 2019
11"15"20"25"

Lengths measured · 21 fish

2019
11"15"20"25"

Lengths measured · 26 fish

2009
11"15"20"25"
Northern pike
Just a few
2.4per gill net
20"Typical
32"Biggest
10"32"

Lengths measured · 21 fish

Recent · 2019
9"10"15"20"25"30"32"

Lengths measured · 21 fish

2019
9"10"15"20"25"30"32"

Lengths measured · 19 fish

2009
9"10"15"20"25"30"32"
Crappie
Just a few
2.3per trap net
11"Typical
14"Biggest
6"14"

Lengths measured · 27 fish

Recent · 2019
6"8"10"12"14"

Lengths measured · 27 fish

2019
6"8"10"12"14"

Lengths measured · 12 fish

2009
6"8"10"12"14"
Yellow perch
Good numbers
7.3per gill net
7"Typical
10"Biggest
4"10"

Lengths measured · 56 fish

Recent · 2019
4"6"8"10"

Lengths measured · 56 fish

2019
4"6"8"10"

Lengths measured · 97 fish

2009
4"6"8"10"
Sauger
Present
0.3per gill net
Typical
15"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

Rat Root Lake fishing reports

Recent reports on Rat Root 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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Koochiching County reports

Within 30 miles

Nearby lakes

Quick answers

Frequently asked questions

Is there a depth map for Rat Root Lake?

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

What fish are in Rat Root Lake?

The most recent DNR survey (2019) recorded walleye, northern pike, crappie, yellow perch, sauger.

Is Rat Root Lake stocked?

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

When was Rat Root Lake last surveyed?

The Minnesota DNR last surveyed Rat Root Lake in 2019, the most recent of 2 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 .