Caldron Falls Reservoir*
Marinette, Oconto County, Wisconsin
About Caldron Falls Reservoir*
Caldron Falls Reservoir* is a serious fishing destination in Marinette, Oconto County, known for both its musky and walleye populations, covering 1,063 acres with a maximum depth of 40 feet. The lake has public boat landing access, making it easy to launch for a day on the water. The fishery includes Largemouth Bass, Musky, and Northern Pike. Note that invasive species (Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Phragmites (non-native), Zebra Mussel) have been documented here — clean your boat before leaving.
Bottom composition: 60% sand, 15% gravel, 10% rock, 15% muck
Type: flowage · Hydrology: DRAINAGE
Lake Location
45.35730° N, 88.23170° W
WBIC 545400 · Wisconsin DNRFish Species
Full table →Fishing Tips
- ·Musky fishing is best in early morning and evening. Work weedlines and structural transitions with large bucktails or soft swimbaits.
- ·Wisconsin musky season typically opens the first Saturday in May. The fall bite (September–October) is peak for trophy fish.
- ·Walleye feed most actively at dawn and dusk. Jig along deep structural breaks or troll crankbaits along weedlines at 6–8 ft depth.
- ·Night fishing under a full moon can produce excellent walleye results from late June through August.
- ·Northern pike are ambush predators — target weed edges, fallen timber, and points with large spoons or swimbaits.
- ·Spring pike fishing (ice-out through June) can be outstanding as they move into shallow, warming bays to spawn.
- ·Largemouth bass relate to shallow structure. Work topwater lures at dawn in summer, then switch to soft plastics rigged weedless around lily pads and fallen wood.
- ·Bluegill and crappie stack up in 8–15 ft of water near weedlines. Small jigs tipped with a waxworm are hard to beat.
- ·Panfish are often excellent for kids and beginners — look for them around any dock or submerged brush piles.
Local's Guide
Fishing
Species-specific tips above. Wisconsin fishing license required for ages 16+. See current season regulations below.
View fishing regulations ↓Swimming
Sandy bottom sections make for good swimming. No lifeguard on duty — swim at your own risk.
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Nearby Dining
Looking for supper clubs and bait shops near Caldron Falls Reservoir*? Local dining recommendations coming soon.
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Insider Tips
Local knowledge about Caldron Falls Reservoir* — 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
Banded Mystery Snail, Curly-Leaf Pondweed, Eurasian Water-Milfoil, Phragmites (non-native), Zebra Mussel
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
Banded Mystery Snail and Curly-Leaf Pondweed and Eurasian Water-Milfoil and Phragmites (non-native) and Zebra Mussel have been documented in Caldron Falls Reservoir*. Clean, drain, and dry all watercraft and equipment before leaving.
Report sightings to the Wisconsin DNR invasive species hotline.Frequently Asked Questions
What fish can you catch in Caldron Falls Reservoir*?
Caldron Falls Reservoir* is home to Largemouth Bass (Common), Musky (Common), Northern Pike (Common), Panfish, and Walleye. Wisconsin fishing regulations apply — check current seasons and size limits before heading out.
Is there a public boat launch on Caldron Falls Reservoir*?
Yes — Caldron Falls Reservoir* has 5 boat landings providing watercraft access. Check for posted local ordinances at the landing before launching.
How big is Caldron Falls Reservoir*?
Caldron Falls Reservoir* has 1,063 acres in surface area, a maximum depth of 40 feet, a mean depth of 15 feet.
What is the bottom of Caldron Falls Reservoir* like?
The lake bottom is composed of 60% sand, 15% gravel, 10% rock, 15% muck. Sandy and gravel bottoms typically support good swimming and healthy fish habitat.
Are there invasive species in Caldron Falls Reservoir*?
Yes — Banded Mystery Snail and Curly-Leaf Pondweed and Eurasian Water-Milfoil and Phragmites (non-native) and Zebra Mussel have been documented in Caldron Falls Reservoir*. 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 Caldron Falls Reservoir* located?
Caldron Falls Reservoir* is located in Marinette, Oconto County, Wisconsin. GPS coordinates: 45.3573° N, 88.2317° W.
Are there vacation rentals on Caldron Falls Reservoir*?
Stay Northern is building the most complete rental directory for Marinette, Oconto County lakes. Check our Caldron Falls Reservoir* vacation rentals listing — if none are available yet, check back soon or browse nearby Marinette, Oconto County lake rentals.
Fishing Regulations
Current season regulations for Caldron Falls Reservoir*
| 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 10. | — |
| 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 | May 2, 2026 to June 19, 2026 | The minimum length limit is 14" and the daily bag limit is 5. | — |
| Largemouth Bass And Smallmouth Bass | June 20, 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 50" and the daily bag limit is 1. | — |
| Northern Pike | May 2, 2026 to March 7, 2027 | No minimum length limit and the daily bag limit is 5. | — |
| Paddlefish | Closed | No fishing allowed. | — |
| Panfish | Open All Year | No minimum length limit and the daily bag limit is 25, 25 panfish may be kept, but only 10 of any one species. | — |
| 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. | — |
| Smallmouth Bass | May 2, 2026 to June 19, 2026 | Fish may not be harvested (catch and release only). | — |
| 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 is 15", but walleye, sauger, and hybrids from 20" to 24" may not be kept, and only 1 fish over 24" is allowed. 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
- 545400
- County
- Marinette, Oconto County
- Surface Area
- 1,063 acres
- Max Depth
- 40 ft
- Mean Depth
- 15 ft
- Bottom
- 60% sand, 15% gravel, 10% rock, 15% muck
- Lake Type
- flowage
- Coordinates
- 45.3573, -88.2317
Boat Rentals Nearby
Pontoon
Listing soonFishing Boat + Motor
Listing soonKayak / Canoe
Listing soonKnow a local boat rental operator near Caldron Falls Reservoir*? Let us know.
Boat Landings (5)
Boat Landing 1
Boat Landing 2
Boat Landing 3
Boat Landing 4
Boat Landing 5
Lake data sourced from the Wisconsin DNR. Last updated 3/24/2026.