---
type: lake
name: "Deep Portage Lake"
county: "Cass"
nearest_town: "Pontoria"
lake_type: "lake"
acres: 129
max_depth_ft: 105
latitude: 46.87036
longitude: -94.39191
lake_score: 62
dnr_lake_id: "11023700"
url: https://www.minnelakes.org/lakes/cass-county/deep-portage-lake
---

# Deep Portage Lake

Lake in Cass County, Minnesota, near Pontoria

- **Surface Area**: 129 acres
- **Max Depth**: 105 ft
- **Average Depth**: 40 ft
- **Shoreline**: 1.8 miles
- **Water Clarity**: 11.7 ft
- **Lake Type**: lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 62/100 (composite of public data, not a visitor rating)

## About

Deep Portage Lake is a 129-acre lake near Pontoria in Cass County, Minnesota. It reaches 105 feet at its deepest point, with an average depth of about 40 feet, and has roughly 1.8 miles of shoreline. DNR surveys put average water clarity at about 11.7 feet, clearer than most lakes in the state.

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.

There is one public boat launch (concrete surface).

## Access

- **Public access**: 1 public boat launch (concrete)
- **Managed by**: Not recorded
- **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, Boating, Paddling

## Amenities

Boat Ramp

## Fish Species

Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Tullibee (Cisco), Rock Bass, Yellow Bullhead

## Nearby Lakes

- [Big Portage Lake](https://www.minnelakes.org/lakes/cass-county/big-portage-lake) - 1.7 miles, 902 acres
- [Sylvan Lake](https://www.minnelakes.org/lakes/cass-county/sylvan-lake-backus) - 1.9 miles, 113 acres
- [Long Lake](https://www.minnelakes.org/lakes/cass-county/long-lake-hackensack) - 2.1 miles, 246 acres
- [Ponto Lake](https://www.minnelakes.org/lakes/cass-county/ponto-lake) - 2.6 miles, 388 acres
- [Five Point Lake](https://www.minnelakes.org/lakes/cass-county/five-point-lake) - 2.8 miles, 251 acres
- [Big Deep Lake](https://www.minnelakes.org/lakes/cass-county/big-deep-lake) - 2.8 miles, 536 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=46.87036,-94.39191)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=11023700)
- [All lakes in Cass County](https://www.minnelakes.org/lakes/cass-county)

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