---
type: lake
name: "Pennington Mine"
county: "Crow Wing"
nearest_town: "Ironton"
lake_type: "mine pit lake"
acres: 62
max_depth_ft: 259
latitude: 46.484
longitude: -93.98321
lake_score: 70
dnr_lake_id: "18043900"
url: https://www.minnelakes.org/lakes/crow-wing-county/pennington-mine
---

# Pennington Mine

Mine pit lake in Crow Wing County, Minnesota, near Ironton

- **Surface Area**: 62 acres
- **Max Depth**: 259 ft
- **Shoreline**: 1.9 miles
- **Water Clarity**: 26 ft
- **Lake Type**: mine pit lake
- **Public Access**: 1 public boat launch (concrete)
- **Lake Score**: 70/100 (composite of public data, not a visitor rating)

## About

Pennington Mine is a 62-acre mine pit lake near Ironton in Crow Wing County, Minnesota. It reaches 259 feet at its deepest point, and has roughly 1.9 miles of shoreline. DNR surveys put average water clarity at about 26 feet, which is exceptionally clear for Minnesota.

Minnesota DNR fisheries surveys list 11 fish species here, including northern pike, largemouth bass, bluegill, pumpkinseed, yellow perch, and rainbow trout. 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 lake trout, and they override the statewide limits. The most recent fisheries survey on file dates to 2022.

There is one public boat launch (concrete surface) managed by the Minnesota DNR. True North Basecamp is mapped close to the shoreline for overnight stays. The lake is listed as infested with zebra mussel — clean, drain and dry your boat and gear before leaving.

## Access

- **Public access**: 1 public boat launch (concrete)
- **Managed by**: Minnesota DNR
- **Launch fee**: Free at DNR public water accesses

## Fishing

- **Species on DNR survey**: 11
- **Stocked**: Yes
- **Last DNR survey**: 2022
- **Special regulations**: Yes
- **Ice fishing**: Yes

### Special Regulations

- **Lake Trout**: All less than 20" must be immediately released, possession limit one.

## Activities

Fishing, Ice Fishing, Paddling, Camping

## Amenities

Boat Ramp, Campground

### Campgrounds

- True North Basecamp

## Fish Species

Northern Pike, Largemouth Bass, Bluegill, Pumpkinseed, Yellow Perch, Rainbow Trout, Tullibee (Cisco), Rock Bass, Bowfin, Hybrid Sunfish, Yellow Bullhead

## Invasive Species

zebra mussel. Clean, drain and dry boats and gear before leaving.

## Nearby Lakes

- [Mahnomen, Alstead & Arco Lake](https://www.minnelakes.org/lakes/crow-wing-county/mahnomen-alstead-and-arco-lake) - 0.6 miles, 272 acres
- [Portsmouth Mine](https://www.minnelakes.org/lakes/crow-wing-county/portsmouth-mine) - 0.9 miles, 149 acres
- [Huntington Mine](https://www.minnelakes.org/lakes/crow-wing-county/huntington-mine) - 1.1 miles, 106 acres
- [Mahnomen Lake](https://www.minnelakes.org/lakes/crow-wing-county/mahnomen-lake) - 1.2 miles, 238 acres
- [Black Hoof Lake](https://www.minnelakes.org/lakes/crow-wing-county/black-hoof-lake) - 1.6 miles, 201 acres
- [Little Black Hoof Lake](https://www.minnelakes.org/lakes/crow-wing-county/little-black-hoof-lake) - 2.5 miles, 72 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=46.484,-93.98321)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=18043900)
- [All lakes in Crow Wing County](https://www.minnelakes.org/lakes/crow-wing-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/crow-wing-county/pennington-mine)*