Trappers and explorers arrived in southern Idaho in the early 19th century. They established immigrant trails in the region by 1849, including the Oregon and California trails. The forest was used by early settlers primarily for extractive industries. Fur trappers of the Hudson's Bay Company discovered the Stanley Basin in the northern part of the forest in the 1820s, but mostly avoided it due to the scarcity of beaver. For early settlers, the welfare of their community was dependent upon timber supply, regulation of stream flow for irrigation, and use of the land for cattle range. Mining began in the 1860s, peaked in the 1880s, and fluctuated over the following century with the extraction of gold, silver, lead, and zinc. The Black Pine Division of the forest was explored in the late 1800s, and the Tallman Mine began producing gold in the 1920s with production peaking from 1949 to 1954. The Black Pine Mine again produced gold from 1992 through November 1997, when the mine's parent company, Pegasus Gold, declared bankruptcy. The location of the mine has since been reclaimed.