Flour Lake
About Flour Lake
Flour Lake is a 330-acre lake near Grand Marais in Cook County, Minnesota. It reaches 75 feet at its deepest point, and has roughly 8.5 miles of shoreline. DNR surveys put average water clarity at about 15.4 feet, which is exceptionally clear for Minnesota. Access is by portage through Superior National Forest; most lakes reached this way lie in or beside the Boundary Waters Canoe Area Wilderness, where an entry permit is required.
Minnesota DNR fisheries surveys list 8 fish species here, including walleye, northern pike, smallmouth bass, yellow perch, lake trout, and tullibee (cisco). The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. Special fishing regulations apply to smallmouth bass, and they override the statewide limits. The most recent fisheries survey on file dates to 2025.
There is one public boat launch (concrete surface) managed by the US Forest Service. OpenStreetMap shows a swim beach on or beside the lake. Flour Lake Campground and Golden Eagle Resort are mapped close to the shoreline for overnight stays. The lake is listed as infested with spiny waterflea — clean, drain and dry your boat and gear before leaving.
Plan Your Visit to Flour Lake
- 330 acres, up to 75 feet deep, near Grand Marais
- 1 public boat launch (concrete) — managed by the US Forest Service
- Game fish on the DNR survey: walleye, northern pike, smallmouth bass, yellow perch, lake trout, and tullibee (cisco)
- Special fishing regulations apply here and override the statewide limits
- Average water clarity around 15.4 feet — very clear
- Swim beach on or beside the lake
- Camping close to the water at Flour Lake Campground and Golden Eagle Resort
- Boundary Waters country: entry permit required, no cans or glass bottles, and motors are restricted on most lakes
- Listed as infested with spiny waterflea — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- US Forest Service
- Wilderness permit
- BWCAW permit required
Conditions
- Surface area
- 330 acres
- Max depth
- 75 ft
- Shoreline
- 8.5 mi
- Water clarity
- 15.4 ft
- Shallows (under 15 ft)
- 115 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
- A BWCAW permit is required year-round; quota permits apply May 1 through September 30
Facilities
- 1 public boat launch (concrete)
- 3 portage accesses
- Swim beach
- Camping: Flour Lake Campground and Golden Eagle Resort
- Picnic area
Best For
- Walleye fishing
- Swimming and beach days
- Lakeside camping
- Canoe tripping
- 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
- 6
- Stocked
- Yes
- Last DNR survey
- 2025
- Special regulations
- Yes
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Special regulations on this lake
- Smallmouth Bass: All from 14-20" must be immediately released. One over 20" allowed in possession.
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Camping & Reservations
Flour Lake Campground and Golden Eagle Resort are mapped on or near Flour Lake. Minnesota state park sites are booked through the DNR reservation system, national forest campgrounds through Recreation.gov, and most state forest campgrounds are first-come, first-served.
Campground locations © OpenStreetMap contributors. Confirm details with the operator.
Activities
Amenities
Fish Species
Plan your trip to Flour Lake
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Nearby Lakes
East Bearskin Lake
77 out of 100 Lake ScoreCook · Grand Marais593 acres
1.2 miles away
Aspen Lake
52 out of 100 Lake ScoreCook · Grand Marais141 acres
1.4 miles away
Bearskin Lake
66 out of 100 Lake ScoreCook · Grand Marais509 acres
2.1 miles away
Daniels Lake
59 out of 100 Lake ScoreCook · Grand Marais509 acres
2.3 miles away
Hungry Jack Lake
71 out of 100 Lake ScoreCook · Grand Marais474 acres
2.3 miles away
Moon Lake
46 out of 100 Lake ScoreCook · Grand Marais148 acres
2.5 miles away
Frequently Asked Questions
Where is Flour Lake?
Flour Lake is in Cook County, Minnesota, near Grand Marais. It covers 330 acres and reaches 75 feet deep.
How big and how deep is Flour Lake?
Flour Lake covers 330 acres with about 8.5 miles of shoreline. Its maximum depth is 75 feet.
What fish can you catch at Flour Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Smallmouth Bass, Yellow Perch, Lake Trout, and Tullibee (Cisco). A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Flour Lake?
Yes. Flour Lake has 1 public boat launch (concrete), managed by the US Forest Service. DNR public water accesses are free to use.
Can you swim at Flour Lake?
Yes. A swim beach is mapped on or beside the lake. Most Minnesota beaches have no lifeguard, so swim at your own risk and check for beach advisories.
Is Flour Lake stocked?
Yes. The Minnesota DNR has stocking records for Flour Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Are there special fishing regulations on Flour Lake?
Yes. All from 14-20" must be immediately released. One over 20" allowed in possession.
Can you camp at Flour Lake?
Yes. Flour Lake Campground and Golden Eagle Resort are mapped on or near the shore. Confirm whether sites are reservable or first-come, first-served before you go.
Does Flour Lake have invasive species?
Yes. The DNR lists Flour Lake as infested with spiny waterflea. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.