Grub

Lake County

Near Prairie Portage

DOW: 38050400

Green SunfishExcellent · 100

A 31-acre lake near Prairie Portage in Lake County — best known for panfish. Last surveyed 1978.

Fish Species (3)

Green Sunfish

Excellent · 100

Above-normal numbers

Trap-net survey · surveyed Jun 1978

Last surveyed 1978 — treat with caution

Avg Weight

0.10 lbs

Catch rate: 1.7 per trap net

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jun 21, 1978	1.67	-	0.10 lbs	Standard trap nets
Jun 21, 1978	1.40	-	0.09 lbs	Standard gill nets

Largemouth Bass

Insufficient

Trap-net survey · surveyed Jun 1978

Last surveyed 1978 — treat with caution

Avg Weight

0.17 lbs

Catch rate: 0.67 per trap net

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jun 21, 1978	0.67	-	0.17 lbs	Standard trap nets
Jun 21, 1978	0.20	-	0.25 lbs	Standard gill nets

Smallmouth Bass

Insufficient

Gill-net survey · surveyed Jun 1978

Last surveyed 1978 — treat with caution

Avg Weight

0.45 lbs

Catch rate: 1.0 per gill net

Survey History

Date	Catch Rate	Avg Length	Avg Weight	Gear
Jun 21, 1978	1.00	-	0.45 lbs	Standard gill nets
Jun 21, 1978	8.00	-	0.28 lbs	Standard trap nets

See the best green sunfish lakes in Minnesota

Fishing Regulations

Statewide limits

Standard statewide Minnesota limits for the species in this lake.

Largemouth and Smallmouth Bass

Season: Mar 1, 2026 – May 8, 2026

Largemouth and smallmouth bass in the Northeast zone, north and east of US Hwy 53 from Duluth to International Falls and Pelican and Ash lakes in St. Louis County.

Catch-and-release only

Largemouth and Smallmouth Bass

Season: May 9, 2026 – Feb 28, 2027

Largemouth and smallmouth bass in the Northeast zone, north and east of US Hwy 53 from Duluth to International Falls and Pelican and Ash lakes in St. Louis County.

6 combined total largemouth or smallmouth

Sunfish

20 combined total

Biologist Notes

June 21, 1978Consists of a very high population of smallmouth bass, and average population of largemouth bass, and a relatively high population of green sunfish.

Consists of a very high population of smallmouth bass, and average population of largemouth bass, and a relatively high population of green sunfish.

Frequently Asked Questions

What fish can you catch in Grub?

Based on Minnesota DNR survey data, anglers target Green Sunfish in Grub. See the full species list above for catch rates, size structure, and quality scores.

Is there public access at Grub?

We don't have a confirmed public access point on record for Grub. Check the DNR LakeFinder page for current access details before you go.

How deep is Grub?

Grub has a maximum depth of 31 feet, per Minnesota DNR data.

When were the main sport fish in Grub last surveyed?

The most recent Minnesota DNR survey data for the main sport fish in Grub is from 1978. Surveys this old should be treated with some caution — fish populations change over time.

Does Grub have any invasive species?

No invasive species are on record for Grub in Minnesota DNR data. Always clean, drain, and dry your equipment to help keep it that way.

Are there special fishing regulations on Grub?

No — Grub has no lake-specific regulations in the 2026 Minnesota DNR regulations, so statewide Minnesota limits apply. The statewide sunfish limit is: 20 combined total. Verify current rules with the Minnesota DNR before keeping fish.