Roslyn's peak coal mine production of nearly 2 million tons was reached in 1910. As coal-fired steam trains were being replaced by diesel power, the mines began to shut down in the 1920s. Although the local coal mines were far from played out (approximately 80% of the coal in the Roslyn mines remains unextracted), the last mine in the area closed in 1963 as business became unprofitable. With the loss of jobs, an exodus of residents ensued. In the mid-1970s, Roslyn began to flourish again as artists and others rehabilitated the town's houses and commercial buildings and settled there. Some individuals own second homes in Roslyn, while working and living full-time in Seattle or Tacoma, for instance.