Mine: Winthrop Mine, Ishpeming, MI

Braastad-Winthrop Mine → Winthrop Mine → Became

Operated for 34 years.

From: 1869

Location: SW Sec. 21 of T47N-R27W

Owned by: Winthrop Iron Co., then Winthrop Hematite Co. (1889). Later Oliver Iron Mining Co. held as a reserve.

Produced: Iron Ore, brown, bessemer and dsiliceous.

Method: Underground.

Railroad connection: M&O (DSSA) and C&NW

Until: 1903

Lifetime Production: 136,572 tons shipped as of 1878. [LSMI-1909] 2,590,560 tons from 1870-1903.

Source: [LSIO-1950]

Notes

Southwest of Ishpeming in Section 21 T47N-R27W. [CNWV]

At least three shafts (1-3) in 1917. [CNWV]

Time Line

1870. Received a 2,000 foot spur from the M&O. [DSS]

~1917. 14,653' of track to this mine were removed. [CNWV]