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Grand Portage Lake

Iron County · cool-water, clear water

148Acres
33ftMax depth
15ftAverage depth
1Public launches
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Today on Grand Portage

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Best fishing times

All fish
GoodFairSlow
Best today…

Times by species available in Premium

Wind & weather

National Weather Service
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What Grand Portage is best for

DNR data
WalleyeCommon7.0
MuskyCommon6.4
BluegillPanfish, common6.4
PerchPanfish, common6.4
CrappiePanfish, common6.4
LargemouthCommon6.4
Northern pikeCommon6.4
SmallmouthPresent3.9
How we rate

Start from how common the DNR says the fish is (abundant 7.5, common 6, present 3.5). Add 1 if the DNR stocked it in the last 5 years, 0.6 for walleye in two-story or complex lakes, and up to 0.9 for lake size. The DNR counts bluegill, perch and crappie together as panfish, so they share a score.

Depth map

Wisconsin DNR

Tap a map to zoom. Pinch or scroll to zoom in, drag to move.

✕ Deepest spot, 33 ftDNR survey map (PDF)

Not for navigation. Old survey; depths and weed lines change.

Rules on this lake

DNR · checked 2026-10-08
Walleye18" min · 3 a dayMay 2, 2026 to March 7, 2027Open
Musky40" min · 1 a dayMay 2, 2026 to December 31, 2026 on open waterOpen
Northern pikeNo size limit · 5 a dayMay 2, 2026 to March 7, 2027Open
Bass14" min · 5 a dayJune 20, 2026 to March 7, 2027Open
PanfishNo size limit · 25 a dayOpen All YearOpen
SturgeonNo fishingClosed
LicenseWisconsin fishing license. No trout or Great Lakes stamp needed here. How to buy one →
Full rules from the DNR

Launches & access

1 public
Bottommuck 50% · gravel 30% · sand 20%
WaterMesotrophic

Stocking

DNR records
2010
5,141 walleye small fingerling, 1.7"

The DNR has 15 fish surveys on file for this lake.

Before you go

DNR
How often it's safe to eat

This is health advice about eating fish, from the DNR. It is not how many you can catch or keep. Catch limits are in Rules.

Eat any amount Bluegill and Sunfish, Bullheads, Crappies, Inland Trout, Yellow Perch

Up to 1 meal a week Bass, Catfish, Pike, Walleye, All Other Species and Sizes

Up to 1 meal a month Muskies

Statewide advice; no lake-specific advisory. Stricter for women who may get pregnant and children under 15. DNR details
Invasive species here

Banded Mystery Snail · Eurasian Water-Milfoil · Yellow Iris

Drain all water, remove plants and animals, and never move live fish or bait to another lake.

Reviews

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Near Grand Portage

Local deals

Local bait shops, resorts and supper clubs can put a coupon here and on the printed sheet, free for a year. Add your business

Grand Portage board

Catches & reports

Lakes near Grand Portage

Within 25 miles
LakeMilesAcresMax depth
Martha LakeIron0.815251 ft
Echo LakeIron0.822025 ft
Mercer LakeIron1.218424 ft
Rice LakeIron1.512521 ft
Payment LakeIron2.26617 ft
Little Pike LakeIron2.39820 ft
Oxbow LakeIron2.88011 ft
Little Turtle River FlowageIron2.92004 ft

Grand Portage questions

How deep is Grand Portage Lake?

Grand Portage Lake is 33 feet at its deepest, and 15 feet deep on average. It covers 148 acres.

What fish are in Grand Portage Lake?

The Wisconsin DNR lists musky (common), panfish (common), largemouth bass (common), northern pike (common), walleye (common) and smallmouth bass (present).

Where is the boat launch on Grand Portage Lake?

There is 1 public launch: Access.

Do I need a trout stamp to fish Grand Portage Lake?

A Wisconsin fishing license covers this lake. No trout or Great Lakes stamp needed here.

What is the walleye limit on Grand Portage Lake?

18" min · 3 a day. Season: May 2, 2026 to March 7, 2027.

Is Grand Portage Lake stocked?

Yes. In 2010 the DNR and partners stocked 5,141 walleye (small fingerling).

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Sources: Wisconsin DNR (lake facts, species, rules, stocking, consumption advice, survey map), National Weather Service (forecast). Sun and moon computed for the lake's location. Best times are a model of light and moon, not a promise. Checked 2026-10-08.