---
type: lake
name: "Flat Horn Lake"
county: "Lake"
nearest_town: "Isabella"
lake_type: "lake"
acres: 52
max_depth_ft: 13
latitude: 47.6607
longitude: -91.45842
lake_score: 43
dnr_lake_id: "38056800"
url: https://www.minnelakes.org/lakes/lake-county/flat-horn-lake
---

# Flat Horn Lake

Lake in Lake County, Minnesota, near Isabella

- **Surface Area**: 52 acres
- **Max Depth**: 13 ft
- **Shoreline**: 2 miles
- **Water Clarity**: 6 ft
- **Lake Type**: lake
- **Public Access**: Carry-in access only
- **Lake Score**: 43/100 (composite of public data, not a visitor rating)

## About

Flat Horn Lake is a 52-acre lake near Isabella in Lake County, Minnesota. It reaches 13 feet at its deepest point, and has roughly 2 miles of shoreline. DNR surveys put average water clarity at about 6 feet.

Minnesota DNR fisheries surveys list 9 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. The most recent fisheries survey on file dates to 2024.

Public access is carry-in only — plan on a canoe, kayak or small boat you can hand-launch.

## Access

- **Public access**: Carry-in access only
- **Managed by**: US Forest Service
- **Launch fee**: Free at DNR public water accesses

## Fishing

- **Species on DNR survey**: 9
- **Stocked**: No
- **Last DNR survey**: 2024
- **Special regulations**: No
- **Ice fishing**: Yes

## Activities

Fishing, Ice Fishing, Paddling, Picnicking

## Amenities

Carry-In Access, Picnic Area

## Fish Species

Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, Rock Bass, White Sucker

## Nearby Lakes

- [Gegoka Lake](https://www.minnelakes.org/lakes/lake-county/gegoka-lake) - 0.9 miles, 145 acres
- [Mitawan Lake](https://www.minnelakes.org/lakes/lake-county/mitawan-lake) - 1.7 miles, 191 acres
- [Grouse Lake](https://www.minnelakes.org/lakes/lake-county/grouse-lake) - 1.9 miles, 119 acres
- [Gander Lake](https://www.minnelakes.org/lakes/lake-county/gander-lake) - 3 miles, 117 acres
- [Inga Lake](https://www.minnelakes.org/lakes/lake-county/inga-lake) - 3.2 miles, 41 acres
- [Dragon Lake](https://www.minnelakes.org/lakes/lake-county/dragon-lake) - 3.5 miles, 79 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=47.6607,-91.45842)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=38056800)
- [All lakes in Lake County](https://www.minnelakes.org/lakes/lake-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/lake-county/flat-horn-lake)*