Mine: Maas Mine, Negaunee, MI
Began → Maas Mine → Became
Owned by: Cleveland Cliffs Mining Co.
Produced: Iron Ore
Method: Underground shaft.
Railroad connection: LS&I
Stamp Mill/Pellet Plant:
Work was started on this mine in January, 1901 with drilling operations on an extensive scale. Sinking of the shaft began in 1903. A steel head frame was erected in 1907 and a permanent surface plant was completed in 1908.
The ore hoist was a first motion Corliss 20"x48" and operates two skips at up to 2,400' per minute. The skip carries four tons of ore.
The cage hoist is a smaller Corliss 14"x24" and operates at 700 feet per minute.
Compressed air is provided by a Corliss compound condensing, two-stage machine. It furnishes air for the Maas and Negaunee mines.
The mine has an electric railroad operated by a 100kw generator driven by a tandem compound, high speed engine 11" and 20"x14" stroke which operates condensing. The mine has six and 1/2 ton locomotives which are used underground on a 30" gauge track with 40 lb. rail.