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Big Eau Pleine Reservoir

Marathon County · warm-water, stained water

6,348Acres
46ftMax depth
16ftAverage depth
12Public launches
VeryWater clarity
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Today on Big Eau Pleine Reservoir

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Best fishing times

All fish
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Best today…

Times by species available in Premium

Wind & weather

National Weather Service
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What Big Eau Pleine Reservoir is best for

DNR data
WalleyeAbundant9.0
Northern pikeCommon6.9
MuskyPresent4.4
SmallmouthPresent4.4
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
Sheets 3 to 8

The DNR drew Big Eau Pleine Reservoir on 8 sheets.

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

✕ Deepest spot, 46 ftDNR survey map (PDF)

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

Rules on this lake

DNR · checked 2026-10-07
Walleye15" min · keep none 20–24" · 1 over 24" · 3 a dayMay 2, 2026 to March 7, 2027Open
Musky40" min · 1 a dayMay 2, 2026 to December 31, 2026 on open waterOpen
Northern pike32" min · 1 a dayMay 2, 2026 to March 7, 2027Open
Bass14" min · 5 a dayMay 2, 2026 to March 7, 2027Open
SturgeonNo fishingClosed
LicenseWisconsin fishing license. No trout or Great Lakes stamp needed here. How to buy one →
Full rules from the DNR

Launches & access

12 public
Bottomsand 60% · muck 25% · rock 15%
WaterHypereutrophic, very clarity
Lake groupBig Eau Pleine Citizens Organization

Stocking

DNR records
2017
3,000,000 walleye fry, 1"
2016
2,000,000 walleye fry, 1"
2,500 muskellunge large fingerling, 11.24"
2015
1,000,000 walleye fry, 1"
2,498 muskellunge large fingerling, 11.3"
2014
500,000 walleye fry, 1"
100,000 northern pike fry, 1"
2,500 muskellunge large fingerling, 9.7"
2013
200,000 walleye fry, 1"

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

Reviews

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Near Big Eau Pleine Reservoir

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

Big Eau Pleine Reservoir board

Catches & reports

Lakes near Big Eau Pleine Reservoir

Within 25 miles
LakeMilesAcresMax depth
North Rice LakeMarathon5.82205 ft
Lake Du BayMarathon6.76,70030 ft
Mosinee FlowageMarathon7.599418 ft
Lake WausauMarathon15.51,91830 ft
Eau Claire Flowage (Schofield)Marathon16.218410 ft
Wisconsin R Fl C3-Stevens PtPortage16.22,09325 ft
Bentley Pond (Dana Pond)Portage18.3865 ft
Big Bass LakeMarathon1917413 ft

Big Eau Pleine Reservoir questions

How deep is Big Eau Pleine Reservoir?

Big Eau Pleine Reservoir is 46 feet at its deepest, and 16 feet deep on average. It covers 6,348 acres.

What fish are in Big Eau Pleine Reservoir?

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

Where is the boat launch on Big Eau Pleine Reservoir?

There are 12 public launches: Lisas Landing, Access Off Eau Pleine Park Rd, Access at Near County Hwy O, Access at Near Maryel Dr And Ruth Dr, Access at Near Sandy Shore Rd, Access at End Of Rd To South Off Big Eau Pleine Park Road, George's Landing, Access at Near Eau Pleine Park Rd, Access at South Of Big Eau Pleine Park Rd, Access at Near Fisherman Cv Off Cth S, Access at Paradise Dr Nr Cth C and Access at Austin Ln And Oxbo Rd.

Do I need a trout stamp to fish Big Eau Pleine Reservoir?

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

What is the walleye limit on Big Eau Pleine Reservoir?

15" min · keep none 20–24" · 1 over 24" · 3 a day. Season: May 2, 2026 to March 7, 2027.

Is Big Eau Pleine Reservoir stocked?

Yes. In 2017 the DNR and partners stocked 3,000,000 walleye (fry).

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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 2026-10-07.