Hemlock Mine → Amasa Mine → Hemlock Mine
Operated for 28 years as Hemlock Mine.
From: 1891
Owned by: Hemlock River Mining Co., Pickands Mather & Co. agent.
Produced: Iron Ore
Method: Underground stoping method.
Railroad connection: C&NW and MILW to port of Escanaba.
Until: 1919
Lifetime Production: 2,125,756 between 1891-1938.
Source: [LSIO-1950]
Earlier called the Hemlock Mine, the Amasa Mine was located about 12 miles northwest of Crystal Falls. The mine was operated by the Hemlock River Mining Company which was a subsidiary of Pickands, Mather & Company. The mine was serviced by both the Milwaukee Road and the Chicago & Northwestern.
Also known as the Amasa-Porter mine.
1916. The Amasa-Porter mine is all low phos, some of it is so low that it comes within the Bessemer limit. A careful selection is being made of all the ores mined and a Bessemer and a non-Bessemer grade is being produced. The Bessemer is easily salable as such and is bringing a handsome price. [DD-1916-0415]
1918. February 21. Amasa-Porter Mine cave-in by water causes 17 fatalities. [DD-1918-0623]
1921. August. The Carpenter ore has been turned over to the North-Western but to compensate for that loss the Judson shovel ore is coming to the St. Paul. The Amasa Porter shovel has stopped operations but the pocket ore is still being received. [DD-1921-0820]
