---
type: lake
name: "Thomas Lake"
county: "Lake"
nearest_town: "Prairie Portage"
lake_type: "lake"
acres: 1465
max_depth_ft: 110
latitude: 47.98916
longitude: -91.23608
lake_score: 57
dnr_lake_id: "38035100"
url: https://www.minnelakes.org/lakes/lake-county/thomas-lake
---

# Thomas Lake

Lake in Lake County, Minnesota, near Prairie Portage

- **Surface Area**: 1,465 acres
- **Max Depth**: 110 ft
- **Shoreline**: 26.2 miles
- **Water Clarity**: 14 ft
- **Lake Type**: lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 57/100 (composite of public data, not a visitor rating)

## About

Thomas Lake is a 1,465-acre lake near Prairie Portage in Lake County, Minnesota. It reaches 110 feet at its deepest point, and has roughly 26.2 miles of shoreline. DNR surveys put average water clarity at about 14 feet, clearer than most lakes in the state. 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.

The DNR has no fish survey on file for this lake, so treat any fishing as exploratory.

There is one public boat launch (concrete surface) managed by the US Forest Service and Minnesota DNR. 16 campgrounds are mapped close to the shoreline for overnight stays.

## Access

- **Public access**: 1 public boat launch (concrete)
- **Managed by**: US Forest Service, Minnesota DNR
- **Launch fee**: Permit or fee required
- **Wilderness permit**: BWCAW entry permit required

## Activities

Boating, Paddling, Canoe Tripping, Camping

## Amenities

Boat Ramp, Carry-In Access, Campground

## Fish Species

No DNR fish survey on file

## Nearby Lakes

- [Hatchet Lake](https://www.minnelakes.org/lakes/lake-county/hatchet-lake) - 2 miles, 127 acres
- [Alworth Lake](https://www.minnelakes.org/lakes/lake-county/alworth-lake) - 2.3 miles, 200 acres
- [Fraser Lake](https://www.minnelakes.org/lakes/lake-county/fraser-lake) - 2.5 miles, 695 acres
- [Ima Lake](https://www.minnelakes.org/lakes/lake-county/ima-lake) - 2.7 miles, 742 acres
- [Alice Lake](https://www.minnelakes.org/lakes/lake-county/alice-lake) - 3.1 miles, 1,469 acres
- [Jordan Lake](https://www.minnelakes.org/lakes/lake-county/jordan-lake) - 3.5 miles, 142 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=47.98916,-91.23608)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=38035100)
- [All lakes in Lake County](https://www.minnelakes.org/lakes/lake-county)

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