Minnesota · DNR survey data
Fat Lake
Fat Lake covers 108 acres in St. Louis 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.
DNR survey data
Fish species
Lake troutPresentPresent in recent DNR surveys.
Present in recent DNR surveys.
Lengths measured · 80 fish
Recent · 2023Lengths measured · 80 fish
2023Lengths measured · 78 fish
2007Lengths measured · 66 fish
1996Rates 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
Fat Lake fishing reports
Recent reports on Fat 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.
Within 30 miles
Nearby lakes
- Eugene Lake · 181 ac · 1.1 mi
- Steep Lake · 97 ac · 1.1 mi
- Beartrack Lake · 157 ac · 1.4 mi
- Little Loon Lake · 167 ac · 1.8 mi
- Thumb Lake · 64 ac · 2.1 mi
- Gun Lake · 184 ac · 2.4 mi
- Finger Lake · 272 ac · 2.9 mi
- Trygg Lake · 24 ac · 3.4 mi
Quick answers
Frequently asked questions
Is there a depth map for Fat Lake?
The Minnesota DNR has not published bathymetry for Fat Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Fat Lake?
The most recent DNR survey (2025) recorded lake trout.
Is Fat Lake stocked?
No stocking is on record for Fat Lake in the DNR's stocking database.
When was Fat Lake last surveyed?
The Minnesota DNR last surveyed Fat Lake in 2025, the most recent of 6 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .