About Eldorado Marsh
Eldorado Marsh is a scenic Fond du Lac County lake worth knowing about, covering 145 acres. Access is limited, which keeps boat traffic low — a plus for solitude seekers. Note that invasive species (Rusty Crayfish) have been documented here — clean your boat before leaving.
Type: flowage · Hydrology: DRAINAGE
Lake Location
43.81790° N, 88.58020° W
WBIC 134400 · Wisconsin DNRLocal's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Check conditions before swimming. No lifeguard on duty. Watch for aquatic vegetation near shorelines.
Content coming soon
Nearby Dining
Looking for supper clubs and bait shops near Eldorado Marsh? Local dining recommendations coming soon.
Content coming soon
Insider Tips
Local knowledge about Eldorado Marsh — best times to visit, quiet spots, and what the regulars know. Contributed tips coming soon.
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Lake Conditions
Water Clarity
—
No data
Trophic Status
—
No data
Invasive Weeds
Present
Rusty Crayfish
Seasonal Notes
Coming soon
Ice-out dates, peak fishing windows
Condition data sourced from Wisconsin DNR surveys. Real-time weed and clarity reports coming soon.
Invasive Species Present
Rusty Crayfish has been documented in Eldorado Marsh. Clean, drain, and dry all watercraft and equipment before leaving.
Report sightings to the Wisconsin DNR invasive species hotline.Frequently Asked Questions
Can you boat on Eldorado Marsh?
Eldorado Marsh does not currently have a public boat landing listed in the Wisconsin DNR database. Shore fishing or kayak/canoe access may still be available — check local access points.
How big is Eldorado Marsh?
Eldorado Marsh has 145 acres in surface area.
Are there invasive species in Eldorado Marsh?
Yes — Rusty Crayfish has been documented in Eldorado Marsh. Please clean, drain, and dry your watercraft and all equipment before leaving any Wisconsin water body to prevent the spread of invasive species.
Where is Eldorado Marsh located?
Eldorado Marsh is located in Fond du Lac County, Wisconsin. GPS coordinates: 43.8179° N, 88.5802° W.
Are there vacation rentals on Eldorado Marsh?
Stay Northern is building the most complete rental directory for Fond du Lac County lakes. Check our Eldorado Marsh vacation rentals listing — if none are available yet, check back soon or browse nearby Fond du Lac County lake rentals.
Fishing Regulations
Current season regulations for Eldorado Marsh
| Species | Season | Min. Length | Daily Bag |
|---|---|---|---|
| Bullheads | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Catfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Cisco And Whitefish | Open All Year | No minimum length limit and the daily bag limit is 10. | — |
| Lake Sturgeon | Closed | No fishing allowed. | — |
| Largemouth Bass And Smallmouth Bass | May 2, 2026 to March 7, 2027 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Muskellunge And Hybrids | May 2, 2026 to December 31, 2026 on open water | The minimum length limit is 40" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | The minimum length limit is 26" and the daily bag limit is 2. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25. | — |
| Rock, Yellow, And White Bass | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Rough Fish | Open All Year | No minimum length limit and the daily bag limit is unlimited. | — |
| Round Goby | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Ruffe | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
| Shovelnose Sturgeon | Closed | No fishing allowed. | — |
| Trout | See specific regulations | https://dnr.wisconsin.gov/topic/fishing/trout/ . | — |
| Walleye, Sauger, And Hybrids | May 2, 2026 to March 7, 2027 | The minimum length limit is 15" and the daily bag limit is 3. | — |
| White Perch | Open All Year | The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office. | — |
Regulations sourced from Wisconsin DNR fisheries data. Always verify current regulations before fishing.
Lake Details
- WBIC
- 134400
- County
- Fond du Lac County
- Surface Area
- 145 acres
- Lake Type
- flowage
- Coordinates
- 43.8179, -88.5802
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Eldorado Marsh? Let us know.
Lake data sourced from the Wisconsin DNR. Last updated 3/24/2026.