Minnesota · DNR survey data
Fishmouth Lake
Fishmouth Lake covers 30 acres in St. Louis County, running to 28 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
Northern pikeFair numbers8.3per gill net24"Typical26"Biggest
Lengths measured · 37 fish
Recent · 2025Lengths measured · 4 fish
2025Only 4 fish measured that year — too few to read as a shape.
Lengths measured · 33 fish
2009Yellow perchPresent2.2per hr (electrofishing)3"Typical5"Biggest
Lengths measured · 25 fish
Recent · 2025Lengths measured · 25 fish
2025Lengths measured · 12 fish
2009Rates 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
Fishmouth Lake fishing reports
Recent reports on Fishmouth 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
- Peary Lake · 116 ac · 0.6 mi
- Brown Lake · 72 ac · 1 mi
- Beast Lake · 85 ac · 1.5 mi
- Oslo Lake · 99 ac · 1.5 mi
- Cruiser Lake · 118 ac · 2.3 mi
- Jorgens Lake · 73 ac · 4.2 mi
- Agnes Lake · 29 ac · 4.3 mi
- Ek Lake · 93 ac · 4.6 mi
Quick answers
Frequently asked questions
Is there a depth map for Fishmouth Lake?
The Minnesota DNR has not published bathymetry for Fishmouth Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Fishmouth Lake?
The most recent DNR survey (2025) recorded northern pike, yellow perch.
Is Fishmouth Lake stocked?
No stocking is on record for Fishmouth Lake in the DNR's stocking database.
When was Fishmouth Lake last surveyed?
The Minnesota DNR last surveyed Fishmouth Lake in 2025, the most recent of 2 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .