Stubler Mine, Minnesota

Stubler Mine is about 12 miles (19 km) west of Virginia, Minnesota, in the northeastern portion of the state. The pit is one of the area’s many water-filled abandoned mines once rich with iron ore. The Stubler Mine beach has changing rooms, latrines and some picnic benches, and campsites are available at the park. In the northeast corner of the lake divers will find a few downed trees, which host sunfish, bass, and large northern pike. On the east side is a small wall that starts in 10 feet (3 m) of water and descends to about 30 feet (9 m). In the southeast corner are reeds and panfish. The area is good for snorkeling, too.

Depths to: 45 feet (12.5 m)

Visibility: 8-40 feet (2.5-12 m)

Water temperature: up to 70 degrees Fahrenheit (21 degrees Celsius) in the summer, above the thermocline, which divers discover about 28 feet (8.5 m) down.

Aquatic life: Sunfish, panfish, bass, northern pike.

Fees: $7 per night for camping

On-site amenities: Campsites, nearby hiking and bicycle trails.

More info: Call the Iron Trail Convention & Visitors Bureau at (800) 777-8497.

Open: Year-round

Getting there: From Duluth, Minnesota, drive north on U.S. Highway 53 to U.S. Highway 169, and turn west. After a few miles you will reach Buhl, which contains two exits. The first is Pennsylvania Avenue; the second is Forest Street. Both will take you to the city park. Follow the road west about 1/4 mile, make a right-hand turn, and follow the road to the parking lot.