The Coeur d'Alene, Idaho labor confrontation of 1899 was the second of two major labor-management confrontations in the Coeur d'Alene mining district of northern Idaho in the 1890s. Like the first incident, the Coeur d'Alene, Idaho labor strike of 1892, the 1899 confrontation was an attempt by union miners, led by the Western Federation of Miners to unionize non-union mines, and have them pay the higher union wage scale. As with the 1892 strike, the 1899 incident culminated in a dynamite attack that destroyed a non-union mining facility, followed by military occupation of the district.
The confrontation of 1899 resulted from the miners' frustrations with mine operators that paid lower wages, hired Pinkerton or Thiel operatives to infiltrate the union; and routinely fired any miner who held a union card.
Angered by wage cuts, Coeur d'Alene area miners conducted a strike in 1892. The strike erupted in violence when union miners discovered they had been infiltrated by a Pinkerton agent who had routinely provided union information to the mine owners. After several deaths, the U.S. army occupied the area and forced an end to the strike. The response to that violence, disastrous for the local miners' union, became the primary motivation for the formation of the Western Federation of Miners (WFM) the following year.
In the period from 1899 to 1901,
...Federal troops demonstrated the power of the back east [mine] owners, compelling some miners to work at gunpoint, others to build their own bull-pens, inventing the rustling card system so no man could hunt a job without the sheriff's approval, and using Governor Steunenberg, whom the miners had helped elect as a Populist, to oust the elected local authorities who might have some sympathy for the strikers.
The Bunker Hill Mining Company at Wardner, Idaho, was profitable, having paid more than $600,000 in dividends. Miners working in the Bunker Hill and Sullivan mines were receiving fifty cents to a dollar less per day than other miners, which at that time represented a significant percentage of the paycheck. The properties were the only mines in the district that were not unionized, and the Bunker Hill company had employed Pinkerton labor spies to identify union members.