Anna Lake
About Anna Lake
Anna Lake is a 598-acre lake near Underwood in Otter Tail County, Minnesota. It reaches 55 feet at its deepest point, and has roughly 9 miles of shoreline. DNR surveys put average water clarity at about 9.5 feet.
Minnesota DNR fisheries surveys list 10 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and yellow perch. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2025.
There is one public boat launch (concrete surface) managed by the Minnesota DNR. The lake is listed as infested with starry stonewort and zebra mussel — clean, drain and dry your boat and gear before leaving.
Plan Your Visit to Anna Lake
- 598 acres, up to 55 feet deep, near Underwood
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, northern pike, largemouth bass, black crappie, bluegill, and yellow perch
- Average water clarity around 9.5 feet
- Listed as infested with starry stonewort and zebra mussel — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 598 acres
- Max depth
- 55 ft
- Shoreline
- 9 mi
- Water clarity
- 9.5 ft
- Shallows (under 15 ft)
- 373 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
- 1 public boat launch (concrete)
Best For
- Walleye fishing
- 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
- 10
- Game fish
- 6
- Stocked
- Yes
- Last DNR survey
- 2025
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Activities
Amenities
Fish Species
Plan your trip to Anna Lake
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Nearby Lakes
Pleasant Lake
63 out of 100 Lake ScoreOtter Tail · Underwood385 acres
1.5 miles away
Norway Lake
53 out of 100 Lake ScoreOtter Tail · Underwood485 acres
2.9 miles away
West Lost Lake
53 out of 100 Lake ScoreOtter Tail · Underwood795 acres
2.9 miles away
East Lost Lake
58 out of 100 Lake ScoreOtter Tail · Battle Lake483 acres
3.3 miles away
North Turtle Lake
56 out of 100 Lake ScoreOtter Tail · Underwood1,773 acres
3.4 miles away
Fish Lake
55 out of 100 Lake ScoreOtter Tail · Fergus Falls1,078 acres
3.6 miles away
Frequently Asked Questions
Where is Anna Lake?
Anna Lake is in Otter Tail County, Minnesota, near Underwood. It covers 598 acres and reaches 55 feet deep.
How big and how deep is Anna Lake?
Anna Lake covers 598 acres with about 9 miles of shoreline. Its maximum depth is 55 feet.
What fish can you catch at Anna Lake?
Minnesota DNR surveys list Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Anna Lake?
Yes. Anna Lake has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Anna Lake?
There is no mapped public swim beach at Anna 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 Anna Lake stocked?
Yes. The Minnesota DNR has stocking records for Anna Lake; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
Does Anna Lake have invasive species?
Yes. The DNR lists Anna Lake as infested with starry stonewort and zebra mussel. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.