Decker Lake
About Decker Lake
Decker Lake is a 325-acre lake near Rosy in Itasca County, Minnesota. It reaches 12 feet at its deepest point, and has roughly 4.2 miles of shoreline.
The DNR has no fish survey on file for this lake, so treat any fishing as exploratory.
The DNR lists public water access for the lake; confirm the launch type before towing a trailer in.
Plan Your Visit to Decker Lake
- 325 acres, up to 12 feet deep, near Rosy
- Public access on record — bring a boat you can hand-launch unless you confirm a ramp
Access & Fees
- Public access
- Public access on record
- Launch fee
- Free at DNR accesses
Conditions
- Surface area
- 325 acres
- Max depth
- 12 ft
- Shoreline
- 4.2 mi
- Shallows (under 15 ft)
- 327 acres
Rules & Regulations
- A Minnesota fishing license is required for anglers 16 and older
- Drain plugs must be out and all water drained before leaving any access; remove aquatic plants from boats and trailers
- Children under 10 must wear a life jacket on a boat that is underway
Facilities
No developed facilities on record. Plan to be self-sufficient.
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Activities
Amenities
Fish Species
Plan your trip to Decker Lake
Compare Decker Lake against the top-ranked lakes nearby, then map your route.
Nearby Lakes
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Webster Lake
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Dixon Lake
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Gilstad Lake
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Moose Lake
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Dunbar Lake
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Frequently Asked Questions
Where is Decker Lake?
Decker Lake is in Itasca County, Minnesota, near Rosy. It covers 325 acres and reaches 12 feet deep.
How big and how deep is Decker Lake?
Decker Lake covers 325 acres with about 4.2 miles of shoreline. Its maximum depth is 12 feet.
What fish can you catch at Decker Lake?
The DNR has no fish survey on file for Decker Lake.
Is there a public boat launch on Decker Lake?
Public access is on record, but not a trailer ramp: public access on record.
Can you swim at Decker Lake?
There is no mapped public swim beach at Decker Lake. Minnesota's public waters are open to swimming where you have legal access, but there are no lifeguards or water-quality monitoring away from designated beaches.