Timber harvesting and railroads drove the economy for nearly a century as loggers moved in from the over-harvested Great Lakes region. Several lumber companies operated in the region from as early as 1896 to present, the most notable being the Humbird Lumber Company which operated from 1900 to around 1944. The lumber companies bought land from the Northern Pacific Railroad and built a major mill at Sandpoint and adjacent Kootenai. Lumber company-owned railroads extended into many of the local drainages including Grouse Creek, Gold Creek and Rapid Lightning Creek. Although the trees were never exhausted in the area, Humbird Lumber succumbed to the low timber prices of the Great Depression.