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(...continued) Work continued by 1886 and a new shaft was sunk northeast of the old workings. In 1890, the ore was thought to have been depleted and work began in 1891 robbing pillars and stripping the stope walls yielding 20,000 tons.
The mine reopened in 1899 operating intermittently thereafter until 1931. During this period, a significant amount of work was accomplished. A slope had been sunk 800 feet further down by 1896. By 1931, the mine had reached a total depth of 3,000 feet and contained 17 levels working multiple shoots of rich magnetite ore as much as 68% pure iron. Small amounts of hematite were also present. An exploratory tunnel known as the Hope Mountain Drift was driven northeast from the ninth level to expose a new shoot of ore.
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