Democratic Sentinel, Volume 18, Number 10, Rensselaer, Jasper County, 23 March 1894 — Deepest Metal Mine in the World. [ARTICLE]

Deepest Metal Mine in the World.

The United States has now, we believe, the deepest metal mine in the world. For some time that claim has been made for the Maria shaft at the mines of Przibram, in Austria, which was 3,675 feet below the surface at the time of the great fire in 1892, and nothing, we believe, has been done upon itrsince that time. It has now been surpassed in depth by the No. 8 shaft of the Tamarack Copper Mining Company in Michigan, which on Dec. 1 was 3,640 feet deep, and is now more than 3,700 feet, the average rate of sinking being about 75 feet a month. This makes it beyond question the deepest metal mine in existence, anch only one other shaft has reached a greater depth, that of a coal mine in Belgium, for which 3,900 feet is claimed.—[Engineering and Mining Journal.