Magnetic Lake
About Magnetic Lake
Magnetic Lake is a 447-acre lake near Maple Hill in Cook County, Minnesota. It reaches 90 feet at its deepest point, and has roughly 10.1 miles of shoreline. DNR surveys put average water clarity at about 14.2 feet, clearer than most lakes in the state. The lake is a border water shared with Canada, so different seasons, limits and licensing rules can apply on the far side.
Minnesota DNR fisheries surveys list 8 fish species here, including walleye, smallmouth bass, yellow perch, lake trout, burbot, and tullibee (cisco). The most recent fisheries survey on file dates to 2025.
The DNR lists public water access for the lake; confirm the launch type before towing a trailer in.
Plan Your Visit to Magnetic Lake
- 447 acres, up to 90 feet deep, near Maple Hill
- Public access on record — bring a boat you can hand-launch unless you confirm a ramp
- Game fish on the DNR survey: walleye, smallmouth bass, yellow perch, lake trout, burbot, and tullibee (cisco)
- Average water clarity around 14.2 feet — very clear
- Border water with Canada — know which side of the line you are fishing on
Access & Fees
- Public access
- Public access on record
- Launch fee
- Free at DNR accesses
Conditions
- Surface area
- 447 acres
- Max depth
- 90 ft
- Shoreline
- 10.1 mi
- Water clarity
- 14.2 ft
- Shallows (under 15 ft)
- 95 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
- A trout and salmon stamp is required to fish designated trout lakes or to keep trout
- Border-water seasons and limits with Canada differ from Minnesota inland rules
Facilities
No developed facilities on record. Plan to be self-sufficient.
Best For
- Quiet paddling
- Ice fishing
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 8
- Game fish
- 7
- Stocked
- No
- Last DNR survey
- 2025
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- No
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Activities
Amenities
Fish Species
Plan your trip to Magnetic Lake
Compare Magnetic Lake against the top-ranked lakes nearby, then map your route.
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Frequently Asked Questions
Where is Magnetic Lake?
Magnetic Lake is in Cook County, Minnesota, near Maple Hill. It covers 447 acres and reaches 90 feet deep.
How big and how deep is Magnetic Lake?
Magnetic Lake covers 447 acres with about 10.1 miles of shoreline. Its maximum depth is 90 feet.
What fish can you catch at Magnetic Lake?
Minnesota DNR surveys list Walleye, Smallmouth Bass, Yellow Perch, Lake Trout, Burbot, Tullibee (Cisco), and Rock Bass. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Magnetic Lake?
Public access is on record, but not a trailer ramp: public access on record.
Can you swim at Magnetic Lake?
There is no mapped public swim beach at Magnetic 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.
Is Magnetic Lake stocked?
The DNR has no stocking report on file for Magnetic Lake; its fishery is sustained by natural reproduction or has not been stocked recently.