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Crosby was built for the sole purpose of mining. It was named for George H. Crosby, a businessman in the mining industry. [5] Crosby was the location of Minnesota's worst mining disaster, the Milford Mine disaster. [6] On February 5, 1924, a new tunnel was blasted too close to nearby Foley Lake, and water rushed in, killing 41 miners.
Portsmouth Mine Pit Lake, sometimes called the Portsmouth Pit, is the deepest lake completely within the state of Minnesota, USA. It has a depth of over 450 feet (137 m), according to the most recent Minnesota DNR data. Lake Superior, over 700 feet deep off the north shore of the state, is technically deeper.
The Cuyuna Range is an inactive iron range to the southwest of the Mesabi Range, largely within Crow Wing County, Minnesota. It lies along a 68-mile-long (109 km) line between Brainerd, Minnesota, and Aitkin, Minnesota. The width ranges from 1 to 10 miles (1.6 to 16 km). [1]
The park is located off Minnesota State Highway 210, near the towns of Crosby, Ironton and Cuyuna. The Croft Mine Historical Park , formerly city-run, is now part of the state recreation area. The Cuyuna Lakes State Trail is a paved 6.1-mile (9.8 km) path that stretches through the multi-unit Cuyuna Country State Recreation Area.
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First mined for iron ore in 1917, the Milford Mine reached depths of 200 feet (61 m) by 1924 under its owner George H. Crosby; 70,000 tons of ore were mined and shipped this same year. Manganese ore, an ingredient used to make steel, was shipped from the Milford site to Duluth then to steel factories in cities including Detroit and Cleveland. [3]
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Crosby Township is a township in Pine County, Minnesota, United States. The population was 97 at the 2000 census. The population was 97 at the 2000 census. Crosby Township was named for Ira Crosby, an early settler.