Minnesota · DNR survey data
Duncan Lake
Duncan Lake covers 477 acres in Cook County, running to 130 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
No recent survey rating.
Lake troutPresent (last recorded 2018)Last recorded in the 2018 survey and not seen since.
Last recorded in the 2018 survey and not seen since.
Lengths measured · 31 fish
Recent surveysLengths measured · 31 fish
2018Lengths measured · 15 fish
2013Lengths measured · 9 fish
2001Only 9 fish measured that year — too few to read as a shape.
Lengths measured · 8 fish
1996Only 8 fish measured that year — too few to read as a shape.
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
Duncan Lake fishing reports
Recent reports on Duncan 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
- Moss Lake · 254 ac · 1.1 mi
- Partridge Lake · 118 ac · 1.3 mi
- Bearskin Lake · 509 ac · 1.7 mi
- Leo Lake · 102 ac · 1.7 mi
- Hungry Jack Lake · 474 ac · 1.8 mi
- Rose Lake · 1,410 ac · 2.1 mi
- Road Lake · 12 ac · 2.4 mi
- Squint Lake · 16 ac · 2.4 mi
Quick answers
Frequently asked questions
Is there a depth map for Duncan Lake?
The Minnesota DNR has not published bathymetry for Duncan Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Duncan Lake?
The most recent DNR survey (2025) recorded smallmouth bass, yellow perch, lake trout.
Is Duncan Lake stocked?
No stocking is on record for Duncan Lake in the DNR's stocking database.
When was Duncan Lake last surveyed?
The Minnesota DNR last surveyed Duncan Lake in 2025, the most recent of 7 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .