Minnesota · DNR survey data
Long (Main Bay) Lake
Long (Main Bay) Lake covers 346 acres in Itasca County, running to 34 feet, last surveyed by the DNR in 2024. 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
Largemouth bassJust a few16.3per hr (electrofishing)14"Typical16"Biggest
Lengths measured · 10 fish
Recent · 2024Lengths measured · 10 fish
2024Lengths measured · 34 fish
2017Lengths measured · 53 fish
2007Lengths measured · 1 fish
1997Only 1 fish measured that year — too few to read as a shape.
Northern pikeJust a few4.6per gill net23"Typical32"Biggest
Lengths measured · 44 fish
Recent · 2024Lengths measured · 44 fish
2024Lengths measured · 53 fish
2017Lengths measured · 71 fish
2007Lengths measured · 85 fish
1997BluegillJust a few7.8per trap net5"Typical8"Biggest
Lengths measured · 153 fish
Recent · 2024Lengths measured · 153 fish
2024Lengths measured · 167 fish
2017Lengths measured · 152 fish
2007Lengths measured · 203 fish
1997CrappieJust a few0.6per trap net8"Typical12"Biggest
Lengths measured · 159 fish
Recent · 2024Lengths measured · 159 fish
2024Lengths measured · 113 fish
2017Lengths measured · 113 fish
2007Lengths measured · 77 fish
1997Rates 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
Long (Main Bay) Lake fishing reports
Recent reports on Long (Main Bay) 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.
Public water access
Getting on the water
- Long Lake (trailer launch)
Within 30 miles
Nearby lakes
- Round Lake · 460 ac · 1.3 mi
- White Swan Lake · 165 ac · 1.9 mi
- King Lake · 311 ac · 2.9 mi
- Beaver Lake · 58 ac · 3.2 mi
- Wasson Lake · 438 ac · 3.2 mi
- Antler Lake · 234 ac · 3.7 mi
- Eagle Lake · 285 ac · 4.2 mi
- Scooty Lake · 167 ac · 4.2 mi
Quick answers
Frequently asked questions
Is there a depth map for Long (Main Bay) Lake?
The Minnesota DNR has not published bathymetry for Long (Main Bay) Lake, so this page carries the survey record instead: species, catch rates and stocking history.
What fish are in Long (Main Bay) Lake?
The most recent DNR survey (2024) recorded walleye, largemouth bass, northern pike, bluegill, crappie, yellow perch, rock bass.
Does Long (Main Bay) Lake have a public access?
Yes. Long (Main Bay) Lake has one public access site: Long Lake (trailer launch).
Is Long (Main Bay) Lake stocked?
No stocking is on record for Long (Main Bay) Lake in the DNR's stocking database.
When was Long (Main Bay) Lake last surveyed?
The Minnesota DNR last surveyed Long (Main Bay) Lake in 2024, the most recent of 5 surveys on record.
Survey numbers are the Minnesota DNR's. How this site reads them →
Page updated .